1. Remember… BIO EOCT is in
Thursday, Happy Dec. 1st!
Please turn to page 357!
Today’s opener is the EOC review questions, #1-6
Write the answers only…read slowly, do your best!
Remember… BIO EOCT is in
NINE SCHOOL DAYS!!!

2. 11.6 KEY CONCEPT Evolution occurs in patterns!!

4. Evolution through natural selection is NOT random.
Natural selection can have direction.
The effects of natural selection add up over time.

5. evolution toward similar traits in unrelated species
Wings, complex eyes, etc.

6. evolution toward different traits in closely related species
red fox
kit fox
How do convergent and divergent evolution illustrate the directional nature of natural selection?
ancestor

7. Species can shape each other over time.
2 or more species evolving together
evolutionary paths become connected
evolve in response to changes in each other
Both benefit from adaptations!!
Both respond to competitive pressure from each other!!

8. Beneficial relationship!!! Ant lives in Acacia plant, protects plant

9. Competitive/evolutionary relationships!!

10. Species can become extinct 
elimination of a species from Earth!!!
occur continuously at a very low rate
Same as speciation
affects a few species/small area
local changes in environment

11. rare but much more intense!!
destroys many species at global level
caused by catastrophic events??
at least 5 mass extinctions in last 600 million years

12. episodes of speciation occur suddenly in geologic time
followed by long periods of little evo. change
Diversification of one ancestral species into many descendent species
Adapted to a wide range of environments

13. Many species evolve from one species during adaptive radiation.
ancestral species diversifies into many descendent species
descendent species usually adapted to wide range of environments

14. REVIEW SHEET from last week… DUE TOMORROW
REVIEW SHEET from last week… DUE TOMORROW! Also due: Vocab Ch 11 Ch Review

15. Open-Notes Pop Quiz!