Evolution Crossword

1. differences in traits among individuals in a population.
2. body parts in different species that are similar because they came from a common ancestor.
4. is a type of isolation where populations are split by canyons, mountains, rivers, etc.
9. is a type of isolation where organisms cannot interbreed due to difference in mating songs.
11. the passing of traits from parent to offspring.
12. body parts in different species that have similar functions but did not come from a common ancestor.
13. is a type of isolation that has to do with timing, such as seasons.
15. the change in inherited traits of a population over many generations.

1. body parts that have little or no current function but were useful in ancestors.
3. the process in which organisms with helpful traits are more likely to survive and reproduce.
5. the study of how embryos develop.
6. a group of organisms who interbreed and produce fertile offspring.
7. the process of forming new species over time.
8. all the genes and alleles in a population.
10. the molecule that carries genetic information in living things.
14. a change in an organism’s DNA.