Vocab. ! Evolution - change in a kind of organism over time; process by which modern organisms have descended from ancient organisms
|
|
- Claribel Stanley
- 5 years ago
- Views:
Transcription
1
2 Vocab! Evolution - change in a kind of organism over time; process by which modern organisms have descended from ancient organisms! Theory - well-tested explanation that unifies a broad range of observations
3 Voyage of the Beagle ( ) Darwin s Voyage - During his travels, Darwin made numerous observations & collected evidence that led him to propose a revolutionary hypothesis about the way life changes over time.
4 Galapagos Islands! During his travels, Darwin was amazed how different organisms were so well adapted to many different environments. ( Perfect fit )! He saw patterns of diversity! Not just in living organisms, but also in fossil records.! The Galapagos Islands were a microcosm of Evolution
5 Darwin s Finches
6 Development of Evolutionary Theory What could cause such great diversity? Why have so many species died out? Why have some species not changed at all? Charles Darwin offered an explanation based on careful observations.
7 Idea s that shaped Darwin s Thinking 1. James Hutton and Charles Lyell helped scientists recognize that Earth is many millions of years old, & the processes that changed Earth in the past are the same processes that operate in the present. 2. Thomas Malthus (English Economist) - reasoned that if the human population continued to grow unchecked, sooner or later there would be insufficient living space & food for everyone. 3. Jean-Baptiste Lamarck proposed that by selective use or disuse of organs, organisms acquired or lost certain traits during their lifetime. These traits could then be passed on to their offspring. Over time, this process led to change in a species
8 Lamarck (His theory is wrong) 1. Tendency Toward Perfection Innate tendency toward complexity & perfection Birds acquired urge to fly Kept trying to fly 2. Use and Disuse Using a trait (wings) causes them to become stronger & larger Disuse causes it to disappear 3. Inheritance of Acquired Traits Passing acquired traits from one generation to the next
9 Lamarck
10 Development of Evolutionary Theory The Survival of the Fittest But What determines Fitness???
11 Development of Evolutionary Theory Darwin Concluded:! Physical traits & behaviors enable organisms to survive and reproduce (Fitness)! Fitness results from adaptations! Darwin reasoned that adaptations result from natural selection & result in evolution Evolution is process by which living things change & diversify over time
12 Natural Selection
13 Evolution Through Natural Selection Premises of Natural Selection! Populations overproduce.! Resources are limited, so competition ensues.! Genetic variations directly impact ability of organisms to survive.! Organisms with beneficial differences will have a better chance of survival.! Surviving individuals pass their traits onto future generations.! This results in a slow change in populations over time.
14 Evolution Through Natural Selection! These end results can be attributed to 3 distinct selection type models. All of which are as a result of environmental pressures.! Directional Selection! Stabilizing Selection! Disruptive Selection
15 Evolution Through Natural Selection Directional Selection! form of natural selection in which entire curve moves; occurs when individuals at one end of a distribution curve have higher fitness than individuals in the middle or at other end of curve
16 Evolution Through Natural Selection Directional Selection
17 Evolution Through Natural Selection Directional Selection e.g.
18 Evolution Through Natural Selection Stabilizing Selection! form of natural selection by which center of curve remains in its current position; occurs when individuals near center of a distribution curve have higher fitness than individuals at either end
19 Evolution Through Natural Selection Stabilizing Selection
20 Evolution Through Natural Selection Stabilizing Selection e.g.
21 Evolution Through Natural Selection Disruptive Selection! form of natural selection in which a single curve splits into two; occurs when individuals at upper and lower ends of a distribution curve have higher fitness than individuals near middle
22 Evolution Through Natural Selection Disruptive Selection
23 Evolution Through Natural Selection Disruptive Selection e.g.
24 QUESTION???????! Are we as Human Beings exempt from Natural Selection? WHY?
25 QUESTION???????! Biologists believe that Achaebacteria living today are similar to ancient achaebacteria. Many of these are found in extreme locations. Some scientists believe that this provides a good example of origins of life.! Why do you think that these organisms have not changed over the years?! Why would understanding the origins of life on earth help with discovering life on other planets?
26 Genetic Drift! Genetic Drift - random change in allele frequencies that occurs in small populations! In small populations, individuals that carry a particular allele may leave more descendants than other individuals do, just by chance. Over time, a series of chance occurrences of this type can cause an allele to become common in a population.! founder effect - change in allele frequencies as a result of migration of a small subgroup of a population
27 Genetic Drift and Founder Effect
28 Does Evolution occur all of the time? NO
29 Hardy-Weinberg principle! The principle that allele frequencies in a population will remain constant unless one or more factors cause frequencies to change If there are no factors causing allele frequencies to change then population is in..! genetic equilibrium - situation in which allele frequencies remain constant
30 Genetic Equilibrium! Five conditions are required to maintain genetic equilibrium from generation to generation:! random mating! population must be very large! there can be no movement into or out of population! no mutations (that filter into gene pool)! no natural selection
31 When evolution DOES OCCUR! The process of SPECIATION - formation of new species! Speciation has occurred when population have become reproductively isolated from one another! reproductive isolation - separation of species or populations so that they cannot interbreed & produce fertile offspring! Reproductive isolation can develop in a variety of ways, including behavioral isolation, geographic isolation, and temporal isolation.
32 Behavioral Isolation! form of reproductive isolation in which two populations have differences in courtship rituals or other types of behavior that prevent them from interbreeding! Examples! Mating calls! Mating dances
33 Geographic Isolation! form of reproductive isolation in which two populations are separated physically by geographic barriers such as rivers, mountains, or stretches of water
34 Temporal Isolation! form of reproductive isolation in which 2 populations reproduce at different times
35 Speciation of Darwin s Finches! Speciation in Galápagos finches occurred by the:! founding of a new population! geographic isolation! changes in new population s gene pool! reproductive isolation! ecological competition
36 Darwin s Finches
37 The Peppered Moth Example of Evolution
38 Background Information! 1850 s: Industrial Revolution! Moths (Biston betularia) come in both light & dark colors.! Until 1850 s, dark color was rare.! After almost 100 years, darker color was dominant form.! Birds are predators of moths
39 What is happening?! Hypothesis: Evolution by natural selection is taking place in peppered moths.! In polluted areas, dark moths have higher fitness (blend in with soot-covered trees) than light moths.! In non-polluted areas, light moths have higher fitness.
40 What is driving this evolution?! Selective Pressure: Predators! Selective Agent: BIRDS!! Therefore, moths that blend in with trees have a higher fitness (survive to reproduce) than those that do not.
41 The Moths:
42
43
44 Conclusion about the moths:! Due to natural selection, in polluted areas darker moths have a higher fitness.
45 Summary of Darwin s Theory! Individual organisms in nature differ, & some variation is inherited! Organisms in nature produce more offspring than can survive & reproduce! Members of each species compete for limited resources! Unique organisms have different advantages & disadvantages in struggle for existence! Individuals best suited to their environment survive & reproduce, passing characteristic to their offspring. Individuals without characteristic die! Species change over time due to natural selection new species arise & others disappear! Species alive today have descended with modification from species of the past! All organisms on Earth are united by a common descent
46 Do Now.. 1. Describe how natural selection can affect traits controlled by single genes. 2. Describe three patterns of natural selection on polygenic traits. Which one leads to two distinct phenotypes? 3. How does genetic drift lead to a change in a population s gene pool? 4. What is the Hardy-Weinberg principle?
Darwin s Theory of Evolution. The Puzzle of Life s Diversity
Darwin s Theory of Evolution The Puzzle of Life s Diversity Evolutionary Theory A scientific explanation that can illustrate the diversity of life on Earth Theory A well-supported, testable explanation
More informationEVOLUTION change in populations over time
EVOLUTION change in populations over time HISTORY ideas that shaped the current theory James Hutton (1785) proposes that Earth is shaped by geological forces that took place over extremely long periods
More informationEVOLUTION. HISTORY: Ideas that shaped the current evolutionary theory. Evolution change in populations over time.
EVOLUTION HISTORY: Ideas that shaped the current evolutionary theory. Evolution change in populations over time. James Hutton & Charles Lyell proposes that Earth is shaped by geological forces that took
More informationEVOLUTION change in populations over time
EVOLUTION change in populations over time HISTORY ideas that shaped the current theory James Hutton & Charles Lyell proposes that Earth is shaped by geological forces that took place over extremely long
More informationEvolution. Chapters 16 & 17
Evolution Chapters 16 & 17 Darwin s Voyage Chapter 16 Change over time Evolution Charles Darwin Developed a scientific theory that explains how modern organisms evolved over long periods of time through
More information14 Ideas That Shaped Darwin's Thinking Slide 1 of 27
14 Ideas That Shaped 1 of 27 An Ancient, Changing Earth An Ancient, Changing Earth How did Hutton and Lyell describe geological change? 2 of 27 An Ancient, Changing Earth Hutton and Lyell helped scientists
More informationWhat 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 informationEVOLUTION. Charles Darwin
EVOLUTION Charles Darwin Question for Thought Earth has millions of other kinds of organisms of every imaginable shape, size, and habitat. This variety of living things is called biological diversity.
More informationCH 16: Evolution of Population
CH 16: Evolution of Population 16.1 Genes and Variation A. Introduction 1. Darwin s theory of evolution by natural selection explained how 2. What Darwin did not know was how were passed down through each
More informationTHE 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 informationChapter 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 information1. E, or change over time, is the process by which modern organisms have descended from ancient organisms
Name Date Period EVOLUTION STARTS WITH? 1. E, or change over time, is the process by which modern organisms have descended from ancient organisms 2. A scientific T is a well supported, testable explanation
More information15-1 The Puzzle of Life's Diversity Slide 1 of 20
1 of 20 Evolution is the process by which modern organisms have descended from ancient organisms. * Known as biological change over time A scientific theory is a well-supported testable explanation of
More information15 2 Ideas That Shaped Darwin's Thinking
1 of 27 Belief of his time 1. Earth was young (~4,000 years old) 2. Plants/ animals never changed 2 of 27 An Ancient, Changing Earth Fossils challenged both of these Beliefs 3 of 27 Geologist gave evidence
More informationEvolution Unit Ch in Miller & Levine Biology textbook
Evolution Unit Ch. 15-17 in Miller & Levine Biology textbook Evolution: theory of how modern organisms have descended from ancient organisms; a.k.a. "a change over time" Charles Darwin is one of the many
More informationTHE HISTORY OF THE THEORY. Darwin presented that happens and offered an of how it happens. Theory a broad that has been and
Evolution Notes THE HISTORY OF THE THEORY Why is the evolutionary theory associated with Charles Darwin? Darwin presented that happens and offered an of how it happens. o Evolution the process by which
More informationUnderstanding 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 information19. When allele frequencies change as a result of the migration of a small subgroup of a population
CP Biology: Evolution Name: Per: Directions: Use your textbook to help you answer the practice questions for each chapter. It is important that you READ the chapter sections and not just search for the
More informationTheory of Evolution. Evolution The process of change over time. Specifically, a change in the frequency of a gene or allele in a population over time
Theory of Evolution Learning Goals Define "Evolution" & "Natural Selection". Describe the 4 steps of Natural Selection, giving an example of each. Explain the importance of "Variation". Does Natural Selection
More information1.A- Natural Selection
1.A- Natural Selection Big Idea 1: The process of evolution drives the diversity and unity of life. EU 1.A- Evolution is change in the genetic makeup of a population over time. EU 1.B- Organisms are linked
More informationNOTES Ch 17: Genes and. Variation
NOTES Ch 17: Genes and Vocabulary Fitness Genetic Drift Punctuated Equilibrium Gene flow Adaptive radiation Divergent evolution Convergent evolution Gradualism Variation 17.1 Genes & Variation Darwin developed
More informationPlease Do Not Write On The Charles Darwin and Evolution Study Guide Practice test Practice Test Multiple Choice
Please Do Not Write On The Charles Darwin and Evolution Study Guide Practice test Practice Test Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
More informationChapter 16. Darwin s Theory Of Evolution
Chapter 16 Darwin s Theory Of Evolution 16-1 I. Evolution A. process by which modern organisms have descended from ancient organisms (change over time) II. Charles Darwin A. Sailed around the world on
More informationTHE THEORY OF EVOLUTION. Darwin, the people who contributed to his ideas, and what it all really means.
THE THEORY OF EVOLUTION Darwin, the people who contributed to his ideas, and what it all really means. DARWIN S JOURNEY Charles Darwin was born in England on February 12, 1809. Geologists were suggesting
More informationEvolution 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 informationWhat 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 informationEvolution of Populations
Evolution of Populations Gene Pools 1. All of the genes in a population - Contains 2 or more alleles (forms of a gene) for each trait 2. Relative frequencies - # of times an allele occurs in a gene pool
More informationDarwin and Natural Selection
Darwin and Natural Selection Background: Students know Evolution is change over time Essential Question: What was Darwin s conclusion about his observations? (CIRCLE ans. ) Vocabulary: Highlight or underline
More informationEvolution by Natural Selection
Evolution by Natural Selection What is evolution? What is evolution? The change in the genetic makeup of a population over time (narrowly defined) Evolution accounts for the diversity of life on Earth
More informationUNIT 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 informationNatural Selection. Charles Darwin & Alfred Russell Wallace
Natural Selection Charles Darwin & Alfred Russell Wallace Darwin s Influences Darwin observed such variations in species on his voyage as a naturalist on the HMS Beagle Darwin s Influences Kept vast diaries
More informationBiology 3201 Unit 4 Evolution Ch Introducing Evolution (part 1) What is Evolution?
Biology 3201 Unit 4 Evolution Ch. 19 - Introducing Evolution (part 1) What is Evolution? Evolution: the relative change in the characteristics of a population over successive generations A population is
More informationDarwin s Observations & Conclusions The Struggle for Existence
Darwin s Observations & Conclusions The Struggle for Existence 1 Voyage of the Beagle During His Travels, Darwin Made Numerous Observations And Collected Evidence That Led Him To Propose A Revolutionary
More informationVocab Darwin & Evolution (Chap 15)
Vocab Darwin & Evolution (Chap 15) 1. Evolution 2. Theory 3. Charles Darwin 4. Fossil 5. Species 6. Natural variation 7. Artificial selection 8. Struggle for existence 9. Fitness 10.Adaptation 11.Survival
More informationDarwin s Theory of Evolution. Geological Change. Lyell's Principles of Geology Ideas That Shaped Darwin s Thinking
Darwin s Theory of Evolution 15.2 Ideas That Shaped Darwin s Thinking Geological Change In 1795, James Hutton published a hypothesis about the geological forces that shaped Earth. Most of these geological
More informationof EVOLUTION???????????? states that existing forms of life on earth have arisen from earlier forms over long periods of time.
Evolution The WHAT theory IS of EVOLUTION???????????? states that existing forms of life on earth have arisen from earlier forms over long periods of time. Some of the strongest evidence to support evolution
More informationChapter 16 and 17: Evolution Darwin s Voyage of Discovery
Chapter 16 and 17: Evolution Darwin s Voyage of Discovery Father of Evolution:. Born in England (2/12/1809) In 1831, Darwin became a naturalist on the HMS Studied and life on a mapping expedition to South
More informationDarwin s Theory of Natural Selection
Darwin s Theory of Natural Selection Question: Has Life Ever Changed? In 1700 s, scientists examined fossils that showed how extinct species look very different than they do today. Scientists began to
More informationCharles Darwin and Evolution
Charles Darwin and Evolution from so simple a beginning, endless forms most beautiful and most wonderful have been, and are being, evolved. On the Origin of Species I. Darwin s Travels 1. In 1831, Charles
More informationTheory 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 informationDarwin s Theory of Evolution The Puzzle of Life s Diversity Chapter 15
Darwin s Theory of Evolution The Puzzle of Life s Diversity Chapter 15 Image from: Biology by Miller and Levine; Prentice Hall Publishing 2006 EVOLUTION: WRITE A DEFINITION: change over time; the process
More informationVERY SIMPLY PUT-- Evolution is. change in a species over time.
EVOLUTION VERY SIMPLY PUT-- Evolution is change in a species over time. How long did it take to CHANGE? 66 million years ago 54 million years ago 37 million years ago 26 million years ago Present Day There
More information2/17/17. 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 informationNatural Selection and Evolution
Natural Selection and Evolution Our plant has been evolving from its simplest beginnings into a vast range of organisms present today This has happened by natural selection Natural Selection and Evolution
More informationDarwin s Theory of Evolution The Puzzle of Life s Diversity
Darwin s Theory of Evolution The Puzzle of Life s Diversity EVOLUTION: WRITE A DEFINITION: change over time; the process by which modern organisms have descended from ancient organisms THEORY: a well-supported
More informationDarwin s Theory of Evolution
EVOLUTION Darwin s Theory of Evolution n Evolution, or change over time, is the process by which modern organisms have descended from ancient organisms. n A scientific theory is a well-supported testable
More informationEvolution 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 information15 Darwin's Theory of Natural Selection 15-1 The Puzzle of Life's Diversity
15-1 The Puzzle of Life's Diversity Study the photo of leaves... What else do you see? How did the Leaf Mantis come to look like decaying leaves? Define evolution in its simplest meaning? Review the meaning
More informationPrinciples of Evolution. Ch Early Ideas About Evolution Early Ideas About Evolution Early Ideas About Evolution 3/21/2016
Principles of Evolution Ch. 10 "Nothing in biology makes sense except in the light of evolution." 10.1 Early Ideas About Evolution The Puzzle of Life s Diversity o Evolution - modern organisms have descended
More informationCharles Darwin. 0 Lived in England : Beagle s five-year voyage mapping the coastline of South America
Charles Darwin 0 Lived in England 0 1809-1882 0 1831-1836: Beagle s five-year voyage mapping the coastline of South America 0 1859: On the Origin of Species by Means of Natural Selection 0 EVOLUTION à
More informationName: Period Study Guide 17-1 and 17-2
Name: Period Study Guide 17-1 and 17-2 17-1 The Fossil Record (pgs. 417-422) 1. What is the fossil record? 2. What evidence does the fossil record provide? 1. 2. 3. List the 2 techniques paleontologists
More information8.1 Scientific Contribution to a Theory of Evolution
8.1 Scientific Contribution to a Theory of Evolution SBI3U MS. DE SOUSA Georges- Louis Leclerc (1707-1788) Challenged the idea that life forms were unchanging. He noticed similarities between humans and
More informationEvolution and Natural Selection
Evolution and Natural Selection What Evolution is NOT Change in a gene pool over time What Evolution IS Evolution unites all fields of biology! Cell biology Genetics/DNA Ecology Biodiversity/Taxonomy Carolus
More informationChapter 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 informationEvolution (Chapters 15 & 16)
Evolution (Chapters 15 & 16) Before You Read... Use the What I Know column to list the things you know about evolution. Then list the questions you have about evolution in the What I Want to Find Out column.
More informationnatural selection evolution
Honors Biology Bellringer: signintoaclicker! natural selection evolution Standard: Students will evaluate the role of natural selection in the development of the theory of evolution. Element: a. Trace
More information1. E, or change over time, is the process by which modern organisms have descended from ancient organisms
Name Date Period EVOLUTION STARTS WITH? 1. E, or change over time, is the process by which modern organisms have descended from ancient organisms 2. A scientific T is a well supported, testable explanation
More informationUnit 8: EVOLUTION NOTES
Unit 8: EVOLUTION NOTES Canale LE EVOLUTION is the change in gene frequency in a population over time. Generally, organisms change from simple to more complex, and happens over many generations. **Evolution
More informationChapter 2 Section 1 discussed the effect of the environment on the phenotype of individuals light, population ratio, type of soil, temperature )
Chapter 2 Section 1 discussed the effect of the environment on the phenotype of individuals light, population ratio, type of soil, temperature ) Chapter 2 Section 2: how traits are passed from the parents
More informationChapter 22: Descent with Modification: A Darwinian View of Life
Chapter 22: Descent with Modification Name Period Chapter 22: Descent with Modification: A Darwinian View of Life As you study this chapter, read several paragraphs at a time to catch the flow of ideas
More informationI. Theories of Evolution Evolution: Adaptation: Jean Baptiste de Lamarck: a) Use & Disuse: b) Inheritance of Acquired Characteristics:
I. Theories of Evolution Evolution: Adaptation: Jean Baptiste de Lamarck: a) Use & Disuse: b) Inheritance of Acquired Characteristics: Figure 1: Lamarckian Evolution III. Darwin & Evolution The Voyage
More informationMultiple Choice Write the letter on the line provided that best answers the question or completes the statement.
Chapter 15 Darwin s Theory of Evolution Chapter Test A Multiple Choice Write the letter on the line provided that best answers the question or completes the statement. 1. On the Galápagos Islands, Charles
More informationNOTES CH 17 Evolution of. Populations
NOTES CH 17 Evolution of Vocabulary Fitness Genetic Drift Punctuated Equilibrium Gene flow Adaptive radiation Divergent evolution Convergent evolution Gradualism Populations 17.1 Genes & Variation Darwin
More informationInterest Grabber. Section Go to Section:
Interest Grabber Section 15-1 A Trip Around the World While on his voyage around the world aboard the H.M.S. Beagle, Charles Darwin spent about one month observing life on the Galápagos Islands. There,
More informationTheory of Evolution. Descent with Modification
Theory of Evolution Descent with Modification Questions, questions, and one more question What does evolution mean? Genetic change of a population over time. Short or long? Both, can you think of some
More informationName Date Class CHAPTER 15. In your textbook, read about developing the theory of natural selection. For each statement below, write true or false.
Name Date Class Study Guide CHAPTER 15 Section 1: Darwin s Theory of Evolution by Natural Selection In your textbook, read about developing the theory of natural selection. For each statement below, write
More informationSection 15 3 Darwin Presents His Case
Section 15 3 Darwin Presents His Case (pages 378 386) Key Concepts How is natural variation used in artificial selection? How is natural selection related to a species fitness? What evidence of evolution
More informationFYI Charles Darwin. Theory of Evolution. Theory of Evolution. Theory of Evolution. Theory of Evolution. Lamarck s Theory
Mr. Saenz Biology Dept North Pitt High School FYI Charles Darwin Charles Darwin came from a family of doctors, and he almost became one, too. Both his father and grandfather were doctors, and they urged
More informationDarwin s Theory of Evolution
Chapter 15 Darwin s Theory of Evolution Section 15 1 The Puzzle of Life s Diversity (pages 369 372) This section outlines Charles Darwin s contribution to science It also describes the pattern of diversity
More informationMicroevolution (Ch 16) Test Bank
Microevolution (Ch 16) Test Bank Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which of the following statements describes what all members
More informationChapter 17: Population Genetics and Speciation
Chapter 17: Population Genetics and Speciation Section 1: Genetic Variation Population Genetics: Normal Distribution: a line graph showing the general trends in a set of data of which most values are near
More informationCH_15_Evolution.notebook. February 28, Cellular Evolution. Jean Baptiste de Lamarck. Endosymbiont Theory. Charles Darwin
Cellular Evolution The first cells were prokaryotic They did not need oxygen (the atmosphere did not contain oxygen until 1.8 billion years ago) Eukaryotic cells were found in the fossil record about 2
More informationEvolution Notes Darwin and His Ideas
Evolution Notes Darwin and His Ideas Charles Darwin Charles Darwin was born in 1809 (on the same day as Abraham Lincoln) In Darwin s day, scientists were just starting to come around to the idea the Earth
More informationName Date Class. Patterns of Evolution
Concept Mapping Patterns of Evolution Complete the flowchart about patterns of evolution. These terms may be used more than once: adaptive radiation, change in response to each other, convergent evolution,
More informationAlong his journey, Darwin kept notes on the variation in different species. His book, Origin of Species, outlined his findings & theories in 1859.
CHARLES DARWIN Born February 12, 1809 At the age of 16 entered medical school in England and flunked out His dad sent him to Univ. of Cambridge in 1827 to study divinity 1831: Darwin left Cambridge and
More informationBiology Slide 1 of 41
Biology 1 of 41 15-3 Darwin Presents His Case 2 of 41 15-3 Darwin Presents His Case Publication of On the Origin of Species Publication of On the Origin of Species Darwin filled notebooks with his ideas
More informationBiology. Slide 1 of 41. End Show. Copyright Pearson Prentice Hall
Biology 1 of 41 15-3 Darwin Presents His Case 2 of 41 Publication of On the Origin of Species Publication of On the Origin of Species Darwin filled notebooks with his ideas about species diversity and
More informationPublication of On the Origin of Species Darwin Presents His Case
Publication of On the Origin of Species Publication of On the Origin of Species Darwin filled notebooks with his ideas about species diversity and the evolution process. Darwin was stunned and disturbed
More informationAdaptation and Change
Adaptation and Change An adaptation is any structure or behavioral trait that improves an organism's success at reproducing and surviving. Most adaptations serve one of three purposes: 1. help an organism
More informationCh. 16 Evolution of Populations
Ch. 16 Evolution of Populations Gene pool the combined genetic information of all the members of a population. There are typically 2 or more alleles for a certain trait. (dominant or recessive) Allele
More informationComputer Simulations on Evolution BiologyLabs On-line. Laboratory 1 for Section B. Laboratory 2 for Section A
Computer Simulations on Evolution BiologyLabs On-line Laboratory 1 for Section B Laboratory 2 for Section A The following was taken from http://www.biologylabsonline.com/protected/evolutionlab/ Introduction
More informationVocabulary List: Instructions: blackout
Artificial Selection Competition Fitness Adaptation Natural Selection Descent with Modification Common Ancestor Fossil Record Geographic Distribution Homologous Body Structures Vestigial Organs Similarities
More informationADAPTATIONS. Characteristics that give an organism a better chance of survival.
ADAPTATIONS Characteristics that give an organism a better chance of survival. Special traits that help living organisms survive in a particular environment. Ex: Polar bear s thick white fur keeps him
More informationBiology 20 Evolution
Biology 20 Evolution Evolution: Modern synthesis: Individuals: Lamarck: Use and disuse: Inheritance of Acquired Traits: Darwin: Travelled: Galapagos Islands: What was the name of Darwin s book, which he
More informationGuided Questions. Who first suggested evolution? Who first suggested creationism? What did humans evolve from?
Guided Questions Who first suggested evolution? Who first suggested creationism? What did humans evolve from? Evolution The Darwinian View of Life The Importance of Evolution This is the most important
More informationEQ: How are genetic variations caused and how do they lead to natural selection?
EQ: How are genetic variations caused and how do they lead to natural selection? What is natural selection Individuals that have physical or behavioral traits that better suit their environment are more
More informationObjectives for Chapter: 22
Descent With Modification: A Darwinian View of Life Chapter 22 Objectives for Chapter: 22 1. Understand the following contributions made by the following as they relate to Darwin s Theory of evolution.
More informationWhat does the phrase Only the Strong Survive mean to you??
What does the phrase Only the Strong Survive mean to you?? Essential Questions: How are we Here? What caused so many different living things to populate Earth? Why do Living things become extinct? 1 A.
More informationREVIEW 6: EVOLUTION. 1. Define evolution: Was not the first to think of evolution, but he did figure out how it works (mostly).
Name: REVIEW 6: EVOLUTION 1. Define evolution: 2. Modern Theory of Evolution: a. Charles Darwin: Was not the first to think of evolution, but he did figure out how it works (mostly). However, Darwin didn
More informationTHE THEORY OF EVOLUTION
THE THEORY OF EVOLUTION Name: Period: Date: I. Evolution- A brief overview EVOLUTION IS: 1. 2. Descent with modifications 3. Plants and animals of today are forms of plants and animals of the past 4. Organisms
More informationEVOLUTION: EVOLUTIONARY THEORY LAMARCK DARWIN. Evolution Activity #1 page 1
AP BIOLOGY EVOLUTION ACTIVITY #1 NAME DATE HOUR EVOLUTIONARY THEORY EVOLUTION: LAMARCK DARWIN Evolution Activity #1 page 1 QUESTIONS: 1. Evolution can be defined as change through time. What is changing?
More informationCharles Darwin became a naturalist, a scientist who studies nature, during a voyage on the British ship HMS Beagle.
Theory of Evolution Darwin s Voyage What did Darwin observe? Charles Darwin became a naturalist, a scientist who studies nature, during a voyage on the British ship HMS Beagle. On his journey, Darwin observed
More information7.1 What is the Theory of Evolution?
Evolution 7.1 What is the Theory of Evolution? SCIENTIFIC THEORY: a well-tested scientific explanation that no evidence contradicts Theories explain the basic ideas of science. If scientists find new evidence
More information16.1 Darwin s Voyage of Discovery Lesson Objectives State Charles Darwin s contribution to science.
16.1 Darwin s Voyage of Discovery Lesson Objectives State Charles Darwin s contribution to science. Describe the three patterns of biodiversity noted by Darwin. Darwin s Epic Journey 1. THINK VISUALLY
More informationEvidence of evolution
The Theory of Evolution Charles Darwin Evidence for evolution Mechanisms for evolution Natural selection Speciation Evidence of evolution Structural adaptations Mimicry Camouflage Physiological adaptations
More informationList the five conditions that can disturb genetic equilibrium in a population.(10)
List the five conditions that can disturb genetic equilibrium in a population.(10) The five conditions are non-random mating, small population size, immigration or emigration, mutations, and natural selection.
More information8/6/2014. Biodiversity. Evolution: Natural Selection Lecture 16 Summer Species Diversity & Unity. Darwin s Journey.
Biodiversity 1 Evolution: Natural Selection Lecture 16 Summer 2014 Globally - ~1.8 million species ~10,000 birds ~ 4629 mammals ~ 8240 reptiles ~ 900,000 insects (named) ~ 300,000 vascular plants ~ 20,000
More informationEvolution: Natural Selection Lecture 16 Summer 2014
Evolution: Natural Selection Lecture 16 Summer 2014 Biodiversity 1 Globally - ~1.8 million species ~10,000 birds ~ 4629 mammals ~ 8240 reptiles ~ 900,000 insects (named) ~ 300,000 vascular plants ~ 20,000
More informationNatural Selection. Professor Andrea Garrison Biology 3A Illustrations 2011 Pearson Education, Inc., unless otherwise noted
Natural Selection Professor Andrea Garrison Biology 3A Illustrations 2011 Pearson Education, Inc., unless otherwise noted Natural Selection Mechanism for change in species over time Proposed by Charles
More informationSelection 10: Theory of Natural Selection
Selection 10: Theory of Natural Selection Darwin began his voyage thinking that species could not change His experience during the five-year journey altered his thinking Variation of similar species among
More information