Evidence for evolution - GOOD WEDDING SETS -...

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

Patternsformacroevolution

Investigation

Whatishappeninginthetwopictures?Whatdoyouthinkiscausingthis?

Patternsformacroevolution

DivergentevolutionConvergentevolutionCoevolution

PunctuatedequilibriumAdaptiveradiationMassextinction

Divergentevolution

Formationofnewanddifferentspeciesfromacommonancestor

Convergentevolution

Evolutionofsimilarfeaturesfromdifferentancestors

Whydidtheydevelopsimilarstructures?

Coevolution

Two(ormore)speciesaffecteachother’sevolution

Review

Punctuatedequilibrium

Rareandrapidspeciation,followedbylittletonoevolutionarychange,andsoforth…

Adaptiveradiation

Commonancestorevolveintomultipledifferentspecies,eachadaptedtoadifferentenvironment

Massextinction

Extinctionoflargenumberofspeciesinashortamountoftime▪ Duetocatastrophicglobaleventorrapidenvironmentalchange

Checkforunderstanding

1. Divergentevolution2. Convergentevolution3. Coevolution4. Punctuatedequilibrium5. Adaptiveradiation6. Massextinction

Checkforunderstanding

1. Divergentevolution2. Convergentevolution3. Coevolution4. Punctuatedequilibrium5. Adaptiveradiation6. Massextinction

Checkforunderstanding

1. Divergentevolution2. Convergentevolution3. Coevolution4. Punctuatedequilibrium5. Adaptiveradiation6. Massextinction

Checkforunderstanding

1. Divergentevolution2. Convergentevolution3. Coevolution4. Punctuatedequilibrium5. Adaptiveradiation6. Massextinction

Checkforunderstanding

1. Divergentevolution2. Convergentevolution3. Coevolution4. Punctuatedequilibrium5. Adaptiveradiation6. Massextinction

Checkforunderstanding

1. Divergentevolution2. Convergentevolution3. Coevolution4. Punctuatedequilibrium5. Adaptiveradiation6. Massextinction

Checkforunderstanding

1. Divergentevolution2. Convergentevolution3. Coevolution4. Punctuatedequilibrium5. Adaptiveradiation6. Massextinction

Practice

EvolutioninAction(1)Youhave10minutes

Practice

“SpeciationWorksheet#2”Youhave10minutes

Homework

Reading-EvidenceforEvolutionDueThursday/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)

1. ANATOMICAL STRUCTURES

• Part of a body

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 EMBRYOLOGY

• Comparing embryos of species

• Embryo = unborn offspring in the process of development

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