Theory of Evolution. Data Driven Process Supported by Evidence

Size: px
Start display at page:

Download "Theory of Evolution. Data Driven Process Supported by Evidence"

Transcription

1 Theory of Evolution Data Driven Process Supported by Evidence

2 TEKS (7) The student knows evolutionary theory is a scientific explanation for the unity and diversity of life. The student is expected to: (A) analyze and evaluate how evidence of common ancestry among groups is provided by the fossil record, biogeography, and homologies, including anatomical, molecular, and developmental; (B) analyze and evaluate scientific explanations concerning any data of sudden appearance, stasis, and sequential nature of groups in the fossil record;

3 Essential Question How do an organism s traits help to determine its survivability in nature?

4 Vocabulary Evolution Ancestor Descended Offspring Fossil record Biogeography Radioactive dating Homology Anatomical homology Homologous Structure Analogous Structure Developmental homology Embryology Molecular homology DNA sequence Genome map Phylogenetic Native Genus Species

5 What defines a Theory? The term theory when used in science does NOT mean guess, educated or otherwise. In science: Theory a logically connected group of ideas that explain a set of facts or phenomena in the natural world which can be repeatedly confirmed through experimentation or observation.

6 Darwin s Theory of Evolution by Natural Selection A species, not an individual, that has changed over time and has members related through decent from a common ancestor. (A species is a group of individuals who are genetically similar enough to reproduce with each other) The change in the species population is driven by Natural Selection. Natural Selection is the ability of the natural world to apply pressure/stresses to a population, and only those with beneficial traits will survive to reproduce (and pass on favorable traits to the next generation).

7 Evidence for the relatedness of life Hypothesis: All living species have descended from common ancestor(s) and changed over time. Prediction: There should be evidence that shows the relatedness of species Geographic distribution/fossil record Homologies

8 Fossil Evidence Fossils are preserved evidence of an organism. There are basically 5 types of fossil evidence: 1. Mold-and-cast bones or shells dissolve and leave a depression 2. Trace impressions of movement (footprint, burrows, toothmarks, etc) 3. Body entire body is preserved 4. Compression organism is compressed and leave a dark imprint. 5. Petrification minerals replace organic matter

9 How is a fossil evidence? Fossils can tell us about time sequences. When used with radioactive dating of the rocks fossils are found in, paleontologists can create a timeline according to the fossil s age, they show successive Evolutionary Change. Fossil intermediates are transitional fossils that have been found between amphibians/reptiles, reptiles/birds, and reptiles/mammals

10 Evolution of horses as an example Horse fore limb fossils have been well documented to show evolutionary connections to modern horses.

11 The fossil record is Incomplete During Charles Darwin s studies, the fossil record was VERY piece mail. Since the 1800 s many more fossils have been found making connects, but it is far from complete. Reasons: 1. Soft tissues are rarely preserved 2. Tectonic movement of Earth s crust has destroyed man fossils. 3. Fossilization only takes place in certain types of environments. 4. Paleontologists have not dug up every place on earth. The fossil record does not show gradual change, it shows sudden appearances followed by stasis.

12 Homologous Evidence Homologies are similarities in structures. There are 3 main types of homologies: 1. Anatomical 2. Developmental 3. Molecular

13 Anatomical Homologies Comparing structures between organisms. Homologous structures same structure, different function (ex: the forelimbs of animals)

14 Anatomical Homologies Comparing structures between organisms. Analogous structures different structure, same function (ex: wings of birds, bats, butterflies, etc)

15 Homology vs. Analogy Natural selection appears to have favored similar adaptations in unrelated organisms in similar environments these structures are analogous. Flight is a good adaptation to have, so wings evolved in many different animal lines independently of each other.

16 Vestigial Structures A feature or trait that exists, but has not apparent function. (ex: hindlimb bones in whales)

17 Vestigial Structures in Humans Some examples in humans: Wisdom teeth, appendix and tailbone. Wisdom Teeth Tailbone Appendix

18 Developmental Homologies Embryology the study of how related organisms tend to develop in very predictable stages.

19 Dog Fetus Bat Fetus Human Fetus

20 Molecular Homologies The best evidence of evolution is coming from today s ability to map genomes and compare gene sequences. All living organisms share the same genetic code, DNA.

21 What similarities exist between humans and other animals? Chromosomes and gene similarities between species show evolutionary similarities. Human chromosome 2 Telomere sequences Centromere sequences Chimpanzee chromosomes Telomere-like sequences Centromere-like sequences 12 Human chromosome 16 Mouse chromosomes (a) Human and chimpanzee chromosomes (b) Human and mouse chromosomes

22 Cytochrome C protein similarities Cytochrome C is a protein found in the inner membrane of the mitochondria. It is understood that all organisms on the planet descended from prokaryotes. If the prokaryotic DNA is not mutated much then connections can be made to the evolution of organisms.

Why is Darwin s Theory of Evolution by Natural Selection controversial? Or is it?

Why is Darwin s Theory of Evolution by Natural Selection controversial? Or is it? Why is Darwin s Theory of Evolution by Natural Selection controversial? Or is it? Why is Darwin s Theory of Evolution by Natural Selection controversial? Why is Darwin s Theory of Evolution by Natural

More information

Darwin s Conclusions. The Theory of Evolution

Darwin s Conclusions. The Theory of Evolution The Theory of Evolution More Evidence for Evolution Notes Pt. 3 Darwin s Conclusions 1. Many traits are heritable 2. Mutations result in variation populations have individuals with many different traits

More information

Warm-Up- Review Natural Selection and Reproduction for quiz today!!!! Notes on Evidence of Evolution Work on Vocabulary and Lab

Warm-Up- Review Natural Selection and Reproduction for quiz today!!!! Notes on Evidence of Evolution Work on Vocabulary and Lab Date: Agenda Warm-Up- Review Natural Selection and Reproduction for quiz today!!!! Notes on Evidence of Evolution Work on Vocabulary and Lab Ask questions based on 5.1 and 5.2 Quiz on 5.1 and 5.2 How

More information

Evidences of Evolution

Evidences of Evolution Evidences of Evolution Darwin stated that all organisms descend from a common ancestor Darwin based his theory of Natural Selection on observations of: Traits, geographical distribution, selective breeding,

More information

16.4 Evidence of Evolution

16.4 Evidence of Evolution 16.4 Evidence of Evolution Lesson Objectives Explain how geologic distribution of species relates to their evolutionary history. Explain how fossils and the fossil record document the descent of modern

More information

Chapter 15 Open Note Quiz Concepts 2 nd Period

Chapter 15 Open Note Quiz Concepts 2 nd Period Chapter 15 Open Note Quiz Concepts 2 nd Period 1.) Please describe the difference between a homologous structure and an analogous structure. Homologous Structure = Same bone structure, different function

More information

Evidence of EVOLUTION

Evidence of EVOLUTION Evidence of EVOLUTION Evolution: Genetic change in a population through time Charles Darwin On his journey around the world, Darwin found evidence of GRADUAL CHANGE (evolution) He cited evidences he found

More information

SCIENTIFIC EVIDENCE TO SUPPORT THE THEORY OF EVOLUTION. Using Anatomy, Embryology, Biochemistry, and Paleontology

SCIENTIFIC EVIDENCE TO SUPPORT THE THEORY OF EVOLUTION. Using Anatomy, Embryology, Biochemistry, and Paleontology SCIENTIFIC EVIDENCE TO SUPPORT THE THEORY OF EVOLUTION Using Anatomy, Embryology, Biochemistry, and Paleontology Scientific Fields Different fields of science have contributed evidence for the theory of

More information

Evolution. Changes over Time

Evolution. Changes over Time Evolution Changes over Time TEKS Students will analyze and evaluate B. 7 C how natural selection produces change in populations, not individuals B. 7 E/F effects of genetic mechanisms and their relationship

More information

Evolution Unit: What is Evolution?

Evolution Unit: What is Evolution? Evolution Unit: What is Evolution? What is The Theory of Evolution? Evolution is, a change (in the genetic composition) of a population over time. on a larger scale, the entire biological history, from

More information

Evidence for Evolution

Evidence for Evolution Evidence for Evolution Evolution Biological evolution is descent with modification. It is important to remember that: Humans did not evolve from chimpanzees. Humans and chimpanzees are evolutionary cousins

More information

EVOLUTION UNIT GUIDE. MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY 2/15 Evolution Intro UG CHECK:

EVOLUTION UNIT GUIDE. MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY 2/15 Evolution Intro UG CHECK: EVOLUTION UNIT GUIDE MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY 2/15 Evolution Intro Part A Q 1-3 2/16 Pocket Mouse Lab 2/17 Pocket Mouse Lab Evolution Essay 2/18 Evolution Notes Part B & C Q 4-8 2/19 Reading

More information

Evidence of Evolution

Evidence of Evolution 16.4 Evidence for Evolution Biogeography Biogeography - study of where organisms live, where they and ancestors lived. Two significant patterns: - closely related species separate in different climates.

More information

Evidences of Evolution (Clues)

Evidences of Evolution (Clues) Evidences of Evolution (Clues) Darwin stated that all organisms descended from a common ancestor Darwin based his theory of Natural Selection on observations of: Traits, geographical distribution, selective

More information

Evidence of Evolution

Evidence of Evolution NAME PER DATE Evidence of Evolution Background When Charles Darwin first proposed the idea that all new species descend from an ancestor, he performed an exhaustive amount of research to provide as much

More information

Chapter 15 Theory of Evolution

Chapter 15 Theory of Evolution Chapter 15 Theory of Evolution 15-1 History of Evolutionary Thought Evolution- the development of new species form pre-existing species. -change over time. In the 1800 s scientists began to present evidence

More information

Since Darwin s work, every scientific test has supported Darwin s basic ideas about evolution

Since Darwin s work, every scientific test has supported Darwin s basic ideas about evolution Guided Reading Answers Since Darwin s work, every scientific test has supported Darwin s basic ideas about evolution Biogeography Biogeography is the study of where organisms live now, and where they and

More information

EVOLUTION. It s a Family Affair

EVOLUTION. It s a Family Affair EVOLUTION It s a Family Affair TODAY S LESSON Diversity and Evolution of Living Organisms I. The scientific theory of evolution is the organizing principle of life science. II. The scientific theory of

More information

Evidence of Evolution (PAP)

Evidence of Evolution (PAP) Name: Date: Period: Background Evidence of Evolution (PAP) When Charles Darwin first proposed the idea that all new species descend from an ancestor, he performed an exhaustive amount of research to provide

More information

16.4 The Evidence of Evolution. Adapted from following Materials; Biology,Miller & Levine (2010) Understanding Evolution (evolution.berkely.

16.4 The Evidence of Evolution. Adapted from following Materials; Biology,Miller & Levine (2010) Understanding Evolution (evolution.berkely. 16.4 The Evidence of Evolution Adapted from following Materials; Biology,Miller & Levine (2010) Understanding Evolution (evolution.berkely.edu) Guiding Question: What are the main lines of scientific evidence

More information

What is Evolution? Evolution Unit Vocabulary. Answer: Evidence of Evolution. What is a Gene Pool? Change over time.

What is Evolution? Evolution Unit Vocabulary. Answer: Evidence of Evolution. What is a Gene Pool? Change over time. What is Evolution? Evolution Unit Vocabulary Practice Quiz Change over time. Evidence of Evolution The gradual development of something, especially from simple to more complex. Can be big or very small

More information

Sources of Evidence of Evolution

Sources of Evidence of Evolution Sources of Evidence of Evolution In The Origin of Species, Darwin assembled a group of facts that had previously seemed unrelated. Darwin s ideas were developed, for the most part, by his observations

More information

Thursday, January 14. Teaching Point: SWBAT. assess their knowledge to prepare for the Evolution Summative Assessment. (TOMORROW) Agenda:

Thursday, January 14. Teaching Point: SWBAT. assess their knowledge to prepare for the Evolution Summative Assessment. (TOMORROW) Agenda: Thursday, January 14 Teaching Point: SWBAT. assess their knowledge to prepare for the Evolution Summative Assessment. (TOMORROW) Agenda: 1. Show Hinsz your completed Review WS 2. Discuss answers to Review

More information

Evidence of Evolution

Evidence of Evolution Evidence of Evolution T h e Fossil Record Fossil: A fossil is the remains or traces of an organism that died long ago. Fossils provide the most powerful evidence of evolution. Fossils are a record of the

More information

Evolution. Darwin s Voyage

Evolution. Darwin s Voyage Evolution Darwin s Voyage Charles Darwin Explorer on an observation trip to the Galapagos Islands. He set sail on the HMS Beagle in 1858 from England on a 5 year trip. He was a naturalist (a person who

More information

The Living Environment Unit 4 History of Biologic Diversity Unit 15 Evolution: (15.2) Evidence of Evolution-class key. Name: Class key.

The Living Environment Unit 4 History of Biologic Diversity Unit 15 Evolution: (15.2) Evidence of Evolution-class key. Name: Class key. Name: Class key Period: Topic 15.2 assignments Pages/Sections Date Assigned Date Due Topic: Evidence for Evolution Objective: What scientific evidence supports evolution theory? Evidence supporting evolution

More information

MAIN IDEA: Early scientists proposed ideas about evolution. In a phrase, tell what each scientist did to help develop evolutionary theory.

MAIN IDEA: Early scientists proposed ideas about evolution. In a phrase, tell what each scientist did to help develop evolutionary theory. SECTION 10.1 KEY CONCEPT EARLY IDEAS ABOUT EVOLUTION Study Guide There were theories of biological and geologic change before Darwin. VOCABULARY evolution fossil gradualism species catastrophism uniformitarianism

More information

Ch. 15: Evolution - change in a species or the formation of new species over time

Ch. 15: Evolution - change in a species or the formation of new species over time Ch. 15: Evolution - change in a species or the formation of new species over time 15.1 Darwin Early Beliefs All species permanent and unchanging Earth only a few thousand years old religion Beliefs based

More information

Evolution Test Review

Evolution Test Review Name Evolution Test Review Period 1) A group of interbreeding organisms (a species) living in a given area is called population 2) Give an example of a species. Ex. One wolf Give an example of a population.

More information

Refer to chapter 16 in your textbook

Refer to chapter 16 in your textbook Refer to chapter 16 in your textbook Learning Goals: 1. Explain how the 6 pieces of evidence support the theory of evolution. 2. Describe the conditions under which natural selection occurs. Evidence of

More information

Theory a well supported testable explanation of phenomenon occurring in the natural world.

Theory a well supported testable explanation of phenomenon occurring in the natural world. Evolution Theory of Evolution Theory a well supported testable explanation of phenomenon occurring in the natural world. Evolution the process by which modern organisms changed over time from ancient common

More information

Evidences of Evolution. Read Section 8.2 on pp of your textbook

Evidences of Evolution. Read Section 8.2 on pp of your textbook Evidences of Evolution Read Section 8.2 on pp. 332 338 of your textbook There are 5 key evidences for evolution: 1. Fossil record 2. Biogeography 3. Anatomical evidence (homologous structures, vestigial

More information

Theory of Evolution. Chapter 15

Theory of Evolution. Chapter 15 Theory of Evolution Chapter 15 The History of Evolutionary Thought Evolution The development of new types of organisms from preexisting types of organisms over time. Also could be described as a heritable

More information

Final Revision G8 Biology ( ) Multiple Choice Identify the choice that best completes the statement or answers the question.

Final Revision G8 Biology ( ) Multiple Choice Identify the choice that best completes the statement or answers the question. Final Revision G8 Biology ( 2017-2018 ) Multiple Choice Identify the choice that best completes the statement or answers the question. 1 A species is a group of similar organisms that A can mate with each

More information

Evidence of Evolution

Evidence of Evolution Evidence of Evolution There is a gigantic body of evidence supporting evolution. Six major areas of study contribute to that body of evidence: 1. The Fossil Record 2. Comparative Anatomy 3. Comparative

More information

Biology. Evolution: History & Process

Biology. Evolution: History & Process Biology Evolution: History & Process Terms: A species is a group of organisms, or population, that can be interbreed & produce fertile offspring. Variations are the differences found within species. Ex:

More information

Homework. Directed Reading Chapter 5 Section 1 #1-17

Homework. Directed Reading Chapter 5 Section 1 #1-17 Homework Directed Reading Chapter 5 Section 1 #1-17 Create a Species Project Learning Targets I can explain how comparing organisms can provide evidence that they have common ancestors. What is the evidence

More information

THE EVIDENCE FOR EVOLUTION

THE EVIDENCE FOR EVOLUTION Unit 37 THE EVIDENCE FOR EVOLUTION LEARNING OBJECTIVES 1. Understand the meaning of the term evolution. 2. Learn about fossil evidence including how fossils are formed. 3. Learn how comparative anatomy

More information

Evidence of Evolution Background

Evidence of Evolution Background Evidence of Evolution Background When Charles Darwin first proposed the idea that all new species descend from an ancestor, he performed an exhaustive amount of research to provide as much evidence as

More information

THE THEORY OF EVOLUTION

THE THEORY OF EVOLUTION THE THEORY OF EVOLUTION Why evolution matters Theory: A well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation

More information

Charles Darwin ( ) Sailed around the world

Charles Darwin ( ) Sailed around the world Charles Darwin (1809-1882) Sailed around the world 1831-1836 2. What did Darwin s Travels reveal The diversity of living species was far greater than anyone had previously known!! These observations led

More information

Doc #1 Evidence of Evolution Name: Period:

Doc #1 Evidence of Evolution Name: Period: Doc #1 Evidence of Evolution Name: Period: Convergent Evolution What does it mean to converge? What is the same about the animals under convergent evolution? Divergent Evolution What does it mean to diverge?

More information

Evolution. Evolutionary Thought / Evidence. Video clip: Is evolution a theory? (mousetrap DVD)

Evolution. Evolutionary Thought / Evidence. Video clip: Is evolution a theory? (mousetrap DVD) Evolution Evolutionary Thought / Evidence Video clip: Is evolution a theory? (mousetrap DVD) Theories of Evolution Evolution - an orderly succession of changes Biological evolution - the change of populations

More information

Evidence for Evolution

Evidence for Evolution Evidence for Evolution 1. 2. 3. 4. 5. Paleontology Comparative Anatomy Embryology Comparative Biochemistry Geographical Distribution How old is everything? The History of Earth as a Clock Station 1: Paleontology

More information

EVOLUTION: EVIDENCE AND THEORY

EVOLUTION: EVIDENCE AND THEORY Name Class Date CHAPTER 15 TEST EVOLUTION: EVIDENCE AND THEORY MATCHING Write the correct letter in the blank before each numbered term. 1. natural selection 2. fitness 3. acquired trait 4. biogeography

More information

Evolution: change in the hereditary

Evolution: change in the hereditary Mechanisms of Evolution Evolution: change in the hereditary features of species over time. Species: a group of organisms that successfully reproduce among themselves. There are two kinds of evolution:

More information

NGSS Example Bundles. 1 of 15

NGSS Example Bundles. 1 of 15 Middle School Topics Model Course III Bundle 3 Mechanisms of Diversity This is the third bundle of the Middle School Topics Model Course III. Each bundle has connections to the other bundles in the course,

More information

The Theory of Universal Common Ancestry suggests that organisms on Earth evolved from a single common ancestor.

The Theory of Universal Common Ancestry suggests that organisms on Earth evolved from a single common ancestor. Common Ancestry Key Concept The Theory of Universal Common Ancestry suggests that organisms on Earth evolved from a single common ancestor. Scientists construct diagrams & charts to show how seemingly

More information

What is Evolution? Study of how things change over time

What is Evolution? Study of how things change over time 10.2 15 Darwin s Theory Observations of Evolution What is Evolution? Study of how things change over time 10.2 15 Darwin s Theory Observations of Evolution Theories of Evolution - Lamarck Jean Baptiste

More information

b. In Table 1 (question #2 on the Answer Sheet describe the function of each set of bones and answer the question.)

b. In Table 1 (question #2 on the Answer Sheet describe the function of each set of bones and answer the question.) Biology EVIDENCE OF EVOLUTION INTRODUCTION: Evidence has been found to indicate that living things have changed gradually during their natural history. The study of fossils as well as embryology, biochemistry,

More information

MS-LS3-1 Heredity: Inheritance and Variation of Traits

MS-LS3-1 Heredity: Inheritance and Variation of Traits MS-LS3-1 Heredity: Inheritance and Variation of Traits MS-LS3-1. Develop and use a model to describe why structural changes to genes (mutations) located on chromosomes may affect proteins and may result

More information

How should we organize the diversity of animal life?

How should we organize the diversity of animal life? How should we organize the diversity of animal life? The difference between Taxonomy Linneaus, and Cladistics Darwin What are phylogenies? How do we read them? How do we estimate them? Classification (Taxonomy)

More information

Biodiversity. The Road to the Six Kingdoms of Life

Biodiversity. The Road to the Six Kingdoms of Life Biodiversity The Road to the Six Kingdoms of Life How the 6 kingdoms came about At first, only two kingdoms were recognized Then Haeckel proposed a third kingdom Protista (where protists had both plant

More information

Understanding Natural Selection

Understanding Natural Selection Understanding Natural Selection Charles Darwin (1809-1882) Sailed around the world 1831-1836 What did Darwin s Travels reveal The diversity of living species was far greater than anyone had previously

More information

Evolution and Natural Selection (16-18)

Evolution and Natural Selection (16-18) Evolution and Natural Selection (16-18) 3 Key Observations of Life: 1) Shared Characteristics of Life (Unity) 2) Rich Diversity of Life 3) Organisms are Adapted to their Environment These observations

More information

Multiple lines of evidence support the theory of evolution.

Multiple lines of evidence support the theory of evolution. Section 2: Multiple lines of evidence support the theory of evolution. K What I Know W What I Want to Find Out L What I Learned Essential Questions How do fossils provide evidence of evolution? How does

More information

Evolution & Natural Selection. Part 2

Evolution & Natural Selection. Part 2 Evolution & Natural Selection Part 2 Remember what we re talking about? Mechanisms of evolution: Mutation Genetic drift Migration Natural selection Artificial selection Sexual selection Artificial selection

More information

UNIT 4: EVOLUTION Chapter 10: Principles of Evolution. I. Early Ideas about Evolution (10.1) A. Early scientists proposed ideas about evolution

UNIT 4: EVOLUTION Chapter 10: Principles of Evolution. I. Early Ideas about Evolution (10.1) A. Early scientists proposed ideas about evolution UNIT IV Chapter 10 Principles of Evolution UNIT 4: EVOLUTION Chapter 10: Principles of Evolution I. Early Ideas about Evolution (10.1) A. Early scientists proposed ideas about evolution 1. Evolution- process

More information

Evidence of Species Change

Evidence of Species Change Evidence of Species Change Evidence of Evolution What is evolution? Evolution is change over time Scientific theory of evolution explains how living things descended from earlier organisms Evidence of

More information

2/17/17. B. Four scientists important in development of evolution theory

2/17/17. B. Four scientists important in development of evolution theory UNIT 4: EVOLUTION Chapter 10: Principles of Evolution I. Early Ideas about Evolution (10.1) A. Early scientists proposed ideas about evolution 1. Evolution- process of biological change by which descendants

More information

Change Over Time. Evidence for evolution

Change Over Time. Evidence for evolution Change Over Time Evidence for evolution 1. Fossils 2. Geographic Distribution of Living Things 3. Structural Adaptations 4. Physiological Adaptations 5. Anatomy 6. Biochemistry 1. Fossils In biological

More information

Chapter 10 Study Guide SECTION 1: Early Ideas about Evolution

Chapter 10 Study Guide SECTION 1: Early Ideas about Evolution NAME Chapter 10 Study Guide SECTION 1: Early Ideas about Evolution BIOLOGY PREAP/GT Match each scientist with the statement that best reflects his ideas about evolutionary theory. 1. Linnaeus a. Species

More information

Evidence for Evolution Notes:

Evidence for Evolution Notes: Evidence for Evolution Notes: Evidence that supports the theory of evolution is usually grouped into four main areas, such as 1. Biochemical DNA analysis 2. Comparative anatomy morphology, homologous structures,

More information

e.g. population: 500, two alleles: Red (R) and White (r). Total: 1000 genes for flower color in the population

e.g. population: 500, two alleles: Red (R) and White (r). Total: 1000 genes for flower color in the population The Evolution of Populations What is Evolution? A change over time in the genetic composition of a population Human evolution The gene pool Is the total aggregate of genes for a particular trait in a population

More information

Anatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous and analogous structures).

Anatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous and analogous structures). Evidence for Evolution Evidence for evolution comes from many different areas of biology: Anatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous

More information

Ch. 15 Evolution. p

Ch. 15 Evolution. p Ch. 15 Evolution p. 418-441 15.1 Darwin s Theory of Natural Selection p. 418 422 Essential Question Main Idea! Charles Darwin developed a theory of evolution based on natural selection. What was the primary

More information

NOTES: CH 22 Descent With Modification A Darwinian View of Life

NOTES: CH 22 Descent With Modification A Darwinian View of Life NOTES: CH 22 Descent With Modification A Darwinian View of Life Our planet is home to a huge variety of organisms (Scientists estimate 5-20 million species of organisms alive today!) Even more amazing

More information

MS-LS4-1 Biological Evolution: Unity and Diversity

MS-LS4-1 Biological Evolution: Unity and Diversity MS-LS4-1 Biological Evolution: Unity and Diversity MS-LS4-1. Analyze and interpret data for patterns in the fossil record that document the existence, diversity, extinction, and change of life forms throughout

More information

Biodiversity. The Road to the Six Kingdoms of Life

Biodiversity. The Road to the Six Kingdoms of Life Biodiversity The Road to the Six Kingdoms of Life How the 6 kingdoms came about At first, only two kingdoms were recognized Then Haeckel proposed a third kingdom Protista (where protists had both plant

More information

Evidence of Evolution *

Evidence of Evolution * OpenStax-CNX module: m45491 1 Evidence of Evolution * OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 By the end of this section, you will

More information

1. The Fossil Record 2. Biogeography 3. Comparative Anatomy 4. Comparative Embryology 5. Molecular Biology

1. The Fossil Record 2. Biogeography 3. Comparative Anatomy 4. Comparative Embryology 5. Molecular Biology What Darwin Observed. copy 1. The Fossil Record 2. Biogeography 3. Comparative Anatomy 4. Comparative Embryology 5. Molecular Biology Activity in groups copy Provides a chronological record of organisms

More information

EVIDENCE FOR EVOLUTION. An Overview

EVIDENCE FOR EVOLUTION. An Overview EVIDENCE FOR EVOLUTION An Overview 13.4 The study of fossils provides strong evidence for evolution The fossil record shows that organisms have evolved in a historical sequence The oldest known fossils

More information

Chapter 15 Darwin s Theory of Evolution. Essential Question: What evidence did Darwin use to develop his theory of evolution?

Chapter 15 Darwin s Theory of Evolution. Essential Question: What evidence did Darwin use to develop his theory of evolution? Chapter 15 Darwin s Theory of Evolution Essential Question: What evidence did Darwin use to develop his theory of evolution? 15-1 The Puzzle of Life s Diversity How did life change from a prokaryote to

More information

Warm Up. Explain how a mutation can be detrimental in one environmental context and beneficial in another.

Warm Up. Explain how a mutation can be detrimental in one environmental context and beneficial in another. Warm Up Explain how a mutation can be detrimental in one environmental context and beneficial in another. Last Picture 4B Evidence for Evolution 1A.4a: Scientific evidence of biological evolution uses

More information

Biology 20 Chapter 5 Lesson 2 Evidence for Evolution. Today s species that exist have evolved from ancestral ones.

Biology 20 Chapter 5 Lesson 2 Evidence for Evolution. Today s species that exist have evolved from ancestral ones. Biology 20 Chapter 5 Lesson 2 Evidence for Evolution Today s species that exist have evolved from ancestral ones. This theory of evolution is supported by many different types of evidence collected by

More information

EVIDENCE OF EVOLUTION

EVIDENCE OF EVOLUTION NAME Block EVIDENCE OF EVOLUTION Background Much evidence has been found to indicate that living things have evolved or changed gradually during their natural history. Scientists have studied fossils,

More information

4.2 Developing a Theory to Explain Change

4.2 Developing a Theory to Explain Change 4.2 Developing a Theory to Explain Change In this section, you will: Compare different explanations for changes in populations over time Describe evidence to support the theory of evolution Explain how

More information

Evolution Common Assessment 1

Evolution Common Assessment 1 Evolution Common Assessment 1 1. The field of biology that includes the study of the origin of new species through time is known as 5. A. biochemistry B. evolution C. ecology D. embryology 2. Evidence

More information

Evolution. Species Changing over time

Evolution. Species Changing over time Evolution Species Changing over time Objectives I can differentiate between natural selection and artificial selection and I can give examples of each. I can explain several reasons for genetic variation

More information

UNIT XI EVOLUTION Test Friday 2-24

UNIT XI EVOLUTION Test Friday 2-24 Unit 9: Evolution UNIT XI EVOLUTION Test Friday 2-24 THE THEORY OF EVOLUTION The theory of evolution is one of the most fundamental concepts in Biology. Evolution Is defined as changes in a over population

More information

Origin of an idea about origins

Origin of an idea about origins Origin of an idea about origins Biological evolution is the process of change during the course of time because of the alteration of the genotype and the transfer of these altered genes to the next generation.

More information

Evolution & Natural Selection

Evolution & Natural Selection Evolution & Natural Selection Chapter 8 Ideas about the earth & its inhabitants were slowly changing In the 1700 & 1800 s, scientists began to overturn long held beliefs and ideas Buffon suggested the

More information

Chapter 15: Darwin and Evolution

Chapter 15: Darwin and Evolution Chapter 15: Darwin and Evolution AP Curriculum Alignment Big Idea 1 is about evolution. Charles Darwin is called the father of evolution because his theory of natural selection explains how evolution occurs.

More information

Evolution. Species Changing over time

Evolution. Species Changing over time Evolution Species Changing over time Charles Darwin Evolution by Means of Natural Selection Reasons for Change Mutation A mutation could cause parents with genes for bright green coloration to have offspring

More information

Heredity and Evolution

Heredity and Evolution Heredity and Variation Heredity and Evolution Living organisms have certain recognisable heritable features such as height, complexion, colour of hair and eyes, shape of nose and chin etc. These are called

More information

Chapter 16: Evolutionary Theory

Chapter 16: Evolutionary Theory Chapter 16: Evolutionary Theory Section 1: Developing a Theory Evolution: Artificial Selection: Evolution: I. A Theory to Explain Change Over Time B. Charles Darwin C. Theory: D. Modern evolutionary theory

More information

Evidence of Evolution. Lesson Overview. Lesson Overview Evidence of Evolution

Evidence of Evolution. Lesson Overview. Lesson Overview Evidence of Evolution Lesson Overview Lesson Overview 16.4 THINK ABOUT IT Scientists in some fields, including geology, physics, paleontology, chemistry, and embryology, did not have the technology or understanding to test

More information

Name: Period: Evidence for Evolution Part I. Introduction

Name: Period: Evidence for Evolution Part I. Introduction Name: Evidence for Evolution Period: Part I. Introduction Two of the most important ideas in evolution are as follows: 1) Every species is a modified (changed) descendant of a species that existed before.

More information

B. Phylogeny and Systematics:

B. Phylogeny and Systematics: Tracing Phylogeny A. Fossils: Some fossils form as is weathered and eroded from the land and carried by rivers to seas and where the particles settle to the bottom. Deposits pile up and the older sediments

More information

Objectives. Evolution. Darwin 5/30/2012. Pre-Darwin. Genetic change in a population over time.

Objectives. Evolution. Darwin 5/30/2012. Pre-Darwin. Genetic change in a population over time. Objectives Evolution What is evolution? What lead Darwin to his thoughts 4 Premises of Evolution by Natural Selection Evidence supporting Evolution Genetic change in a population over time. Unifying concept

More information

Chapter 15 Theory of Evolution

Chapter 15 Theory of Evolution Chapter 15 Theory of Evolution 1. What is Evolution? All the changes that have formed life on earth from its earliest beginnings to the diversity that characterizes it today. A heritable (genetic) change

More information

Evolution and Darwin

Evolution and Darwin Evolution and Darwin Evolution The processes that have transformed life on earth from it s earliest forms to the vast diversity that characterizes it today - Darwin Old Theories of Evolution Jean Baptiste

More information

NATURAL SELECTION AND VARIATION. Part 1

NATURAL SELECTION AND VARIATION. Part 1 NATURAL SELECTION AND VARIATION Part 1 THE WORK OF CHARLES DARWIN EVOLUTION AS A (SCIENTIFIC) THEORY Evolution change in a population of organisms over time Scientific Theory well-tested explanation based

More information

Darwin's Theory. Use Target Reading Skills. Darwin's Observations. Changes Over Time Guided Reading and Study

Darwin's Theory. Use Target Reading Skills. Darwin's Observations. Changes Over Time Guided Reading and Study Darwin's Theory This section discusses Charles Darwin and his theories ofevolution, which are based on what he saw during his trip around the world. Use Target Reading Skills In the graphic organizer,

More information

Stnd: 8 e C-Notes: Evidence of Evolution

Stnd: 8 e C-Notes: Evidence of Evolution Stnd: 8 e C-Notes: Evidence of Evolution 3/10/2014 Objective: SWBAT analyze different types of evidence of evolution with regard to diversity of different organisms. What evidence supports evolution? 1.

More information

Where did all the diversity come from?

Where did all the diversity come from? Evolution Where did all the diversity come from? Evolution change over time; the process by which modern organisms have descended from ancient organisms Charles Darwin contributed to the theory of evolution

More information

After you read this section, you should be able to answer these questions:

After you read this section, you should be able to answer these questions: CHAPTER 10 1 Change Over Time SECTION The Evolution of Living Things 7.3.c, 7.3.d California Science Standards BEFORE YOU READ After you read this section, you should be able to answer these questions:

More information

CHANGE OVER TIME. Ms. Feierabend

CHANGE OVER TIME. Ms. Feierabend CHANGE OVER TIME Ms. Feierabend OBJECTIVES Demonstrate the theory of natural selection through historical & modern-day examples. Recognize that variation exists in every population & describe how a variation

More information

Theory. Pattern and Process

Theory. Pattern and Process Theory Pattern and Process Definition of Science: Science is based on evidence and always changing. Scientists test explanations and predictions of natural phenomena. Some questions are outside the realm

More information

GRADE EIGHT Theme: Cause and Effect

GRADE EIGHT Theme: Cause and Effect GRADE EIGHT Theme: Cause and Effect Since causes of complex phenomena and systems are not always immediately or physically visible to students, the need to develop abstract thinking skills is a significant

More information