Chapter 11

1. body parts for a common reason not common structure
4. how fit an organism is to live
7. The selections are made by something other then nature
12. to change to increase survivability
16. when 1 species stops inbreeding and creates 2 new species
17. how populations are maintained
18. when an individual selects a mate based on a hereditary trait.
19. type of reproductiev isolation when courting rituals do not match upor other behaviors prevent breeding
20. when the organisms at the start and end have a high fitness from the organisms form the middle .

2. type of reproductive isolation when 2 or more species reproduce at different times.
3. preserved remains or traces of an ancient species
5. all organisms have more fitness for living then in the future
6. structures that are similar because they came from a previous species
8. formulation of a new species
9. hereditary characteristics that increase survival ability
10. byproduct from evolution
11. all alleles for a gene in a population
13. is when the organisms at the beginning have higher fitness than any other
14. a species changing to increase its chances of surviving
15. physical separation of species due to the geography