DO NOW Choose one of the following and explain how that type of isolation leads to a new species: Geographic isolation Behavioral isolation Temporal isolation
Agenda Do Now Review Patterns for macroevolution Evidence for evolution
UNIT TEST: NEXT THURSDAY/FRIDAY
Objective I will Compare and contrast 6 patterns for evolution Analyze evidence for evolution
Patterns for macroevolution
Investigation What is happening in the two pictures? What do you think is causing this?
Patterns for macroevolution Divergent evolution Convergent evolution Coevolution Punctuated equilibrium Adaptive radiation Mass extinction
Divergent evolution Formation of new and different species from a common ancestor
Convergent evolution Evolution of similar features from different ancestors Why did they develop similar structures?
Coevolution Two (or more) species affect each other s evolution
Review
Punctuated equilibrium Rare and rapid speciation, followed by little to no evolutionary change, and so forth
Adaptive radiation Common ancestor evolve into multiple different species, each adapted to a different environment
Mass extinction Extinction of large number of species in a short amount of time Due to catastrophic global event or rapid environmental change
Check for understanding 1. Divergent evolution 2. Convergent evolution 3. Coevolution 4. Punctuated equilibrium 5. Adaptive radiation 6. Mass extinction
Check for understanding 1. Divergent evolution 2. Convergent evolution 3. Coevolution 4. Punctuated equilibrium 5. Adaptive radiation 6. Mass extinction
Check for understanding 1. Divergent evolution 2. Convergent evolution 3. Coevolution 4. Punctuated equilibrium 5. Adaptive radiation 6. Mass extinction
Check for understanding 1. Divergent evolution 2. Convergent evolution 3. Coevolution 4. Punctuated equilibrium 5. Adaptive radiation 6. Mass extinction
Check for understanding 1. Divergent evolution 2. Convergent evolution 3. Coevolution 4. Punctuated equilibrium 5. Adaptive radiation 6. Mass extinction
Check for understanding 1. Divergent evolution 2. Convergent evolution 3. Coevolution 4. Punctuated equilibrium 5. Adaptive radiation 6. Mass extinction
Check for understanding 1. Divergent evolution 2. Convergent evolution 3. Coevolution 4. Punctuated equilibrium 5. Adaptive radiation 6. Mass extinction
Practice Evolution in Action (1) You have 10 minutes
Practice Speciation Worksheet #2 You have 10 minutes
Homework Reading- Evidence for Evolution Due Thursday/Friday
WE WILL NOW SWITCH GEARS
POGIL ROLES Facilitator: Keeps track of time, ensures everyone is working in a timely manner Spokesperson: Communicates questions to the teacher Quality Control: Ensures all members are answering all questions together Process Analyst: Evaluates team members and generates a report
POGIL Take 30 seconds to determine your roles
POGIL Goal: Learn about evidence for evolution You have 20 minutes to complete the entire packet
POGIL Goal: Learn about evidence for evolution You have 40 minutes to complete the entire packet
DO NOW Take out your HW (2 worksheets) Glue them to your practice notebook
AGENDA Review Continue lesson
EVIDENCE FOR EVOLUTION
EVIDENCE FOR EVOLUTION 1. Anatomical structures (fossil records) Comparative Anatomy Homologous and analogous structures Vestigial structure 2. Comparative Embryology 3. DNA sequences (Biochemical)
Part of a body 1. ANATOMICAL STRUCTURES
FOSSIL RECORD History of life documented by fossils Fossil record represents less than 1% of all species that ever lived
COMPARATIVE ANATOMY Study of similarities and differences of the anatomies of different organisms
HOMOLOGOUS STRUCTURES Structures inherited from the same ancestor; variation in use
QUICK CHECK Do homologous structures arise from convergent or divergent evolution?
ANALOGOUS STRUCTURE Different anatomies (from different ancestors) but similar functions
QUICK CHECK Do analogous structures arise from convergent or divergent evolution?
VESTIGIAL STRUCTURE Anatomical structure that was important to an ancestor, but no longer serves a purpose
2. COMPARATIVE Comparing embryos of species Embryo = unborn offspring in the process of development EMBRYOLOGY
3. DNA SEQUENCES (BIOCHEMICAL) Comparing DNA and genes
EVIDENCE FOR EVOLUTION 1. Anatomical structures (fossil records) Comparative Anatomy Homologous and analogous structures Vestigial structure 2. Comparative Embryology 3. DNA sequences (biochemical)
SUMMARY OF NOTES Write a summary of all the notes you took today IN YOUR OWN WORDS. 2 paragraphs - 1 paragraph for the patterns of evolution, 1 paragraph for the evidence for evolution