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PATTERNS FOR EVOLUTION1/29/19
PAGE 86
DO NOW▸ What is speciation?
▸ How can reproductive isolation occur?
▸ How does reproductive isolation lead to speciation?
AGENDA
▸ Patterns for evolution
▸ Summary
▸ Practice
PATTERNS FOR MACROEVOLUTION
CORNELL NOTES TITLE (PAGE 87)
PAGE 87
PATTERNS FOR MACROEVOLUTION▸ Divergent evolution
▸ Convergent evolution
▸ Coevolution
▸ Punctuated equilibrium
▸ Adaptive radiation
▸Mass Extinction
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DIVERGENT EVOLUTION▸ Formation of new and different species from a
common ancestor
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CONVERGENT EVOLUTION▸ Evolution of similar features from DIFFERENT
ancestors
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COEVOLUTION▸ Two (or more) species affect each other’s
evolution
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PUNCTUATED EQUILIBRIUM▸ Rare and rapid speciation, followed by little to
no evolutionary change, and so forth…
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ADAPTIVE RADIATION▸ Common ancestor evolves into different
species, each adapted to a different environment
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MASS EXTINCTION▸ Extinction of a large number of species in a
short amount of time
▸ Due to catastrophic global event or rapid environmental change
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
WORKSHEETS15 MINS
PRACTICE▸ Finish both worksheets and the summary!
ILLUSTRATIVE SUMMARYPAGE 86 (UNDER DO NOW)
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ILLUSTRATIVE SUMMARY
‣ ALL TERMS must be included
‣ If you do a flow chart, you must explain the connections
‣ Use at least 4 colors
‣ Label as necessary
HOMEWORKHW FOLDER due this Friday
