Evolution

4. ____ cells contain a nucleus and other membrane-bound organelles.
5. ____ evolution occurs when descendants of a single ancestor diversify into unique species
7. two or more species affect each other's evolution
8. ____ reproduction produces offspring by using genetic information from one parent
10. microscopic living organisms that have only one cell
14. ____ adaptations are parts of an organism's biology that helps them to survive
16. ____ structures are structures that look similar due to adapting to similar environments
19. traits that help an organism survive/reproduce
20. ____ reproduction produces offspring by using genetic information from two parents

1. when a species separates from other members and becomes a new species
2. ____ evolution occurs when different species evolve similar traits
3. ____ adaptations are the way an animal behaves in order to survive
6. ____ cells lack a nucleus and other organelles
9. the study of development of an embryo
11. a variation of a gene
12. ____ structures no longer serve their original purpose but are still present
13. the differences in traits between individuals in a population
15. ____ structures are bone/organ structures that are similar due to common ancestry
17. the dying out of a species
18. a specific characteristic of an individual