1. Check HW (bacteria & OR)
Date:
10/12/16
Topic:
Evolution Review Day
Page # ___
Must wear uniforms/IDs!
10/12/16
EBHS
Admit Slip
What is the difference between homologous, analogous, and vestigial structures?
Check HW (bacteria & OR)

2. Evolution MCAS Open Response
HW Review
Evolution MCAS Open Response

3. Homologous Structures
Similar structures (ex. bones) in different species, due to common ancestry

4. Analogous Structures
Similar shaped body parts in different species due to common function; NOT due to common ancestry

5. Vestigial Structures
Remnant structures (bones/organs) in today’s species that are no longer used (were used in ancestral species)
Shows organisms have changed over time

9. Natural Selection
In pairs, describe an example of natural selection and list the steps in which it occurs

10. Steps of Natural Selection*
1) Populations of individuals compete for survival
2) As they reproduce, random mutations occur that can lead to new traits
3) New traits may lead to increased or decreased survival rates
4) Organisms that survive reproduce and pass on their traits
5) Populations evolve as natural selection selects “for” or “against” certain traits, and they become more common in the population

11. Selected “for” or “against” ?
For = trait allows organisms to survive better in specific environment
Against = traits influences organism to die easier in specific environment

12. Brain development We have bigger brains than our ancestors used to…
Does that mean larger brains were selected for or against?
Why might we have developed big brains?
c-LZ_7dg

13. Evolution Review Game
pardyx/jeopardy-review- game.php?gamefile=

14. Socrative.com
Study tool!!!