Science Vocab

3. - The condition of being physically dirt and healthy
4. Drift - Change in the frequency of an existing gene variant in the population
7. structure - features of different species that are similar in function but no in structure
9. - The formation of new and distinct species in the course of evolution
10. - The process of different kinds of living organisms that have developed
13. selection - The process where humans choose individual organisms
14. isolation - A type of reproductive isolation where two species reproduce at different times
15. isolation - Happens when two of more species reproduce at different times
16. isolation - a term used to describe the physical separation of populations of organisms
20. Isolation - When species are reproductively isolated from others due to differences in behavior
21. - the action or process of adapting or being

1. - The preserved remains of plants and animals whose bodies were buried in sediments
2. - the basic physical and functional unit of heredity
5. isolation - The separation of groups of organisms as a result of changes in their ecology
6. divergence - the process in which two or more populations of an ancestral species accumulate independent changes
8. of the fittest - The continued existence of organisms which are adapted to the environment
11. selection - A mechanism of evolution
12. structure - Similar physical features in organisms that share as common ancestor
17. - The complete disappearance of a species from earth
18. Structure - A feature that a species inherited from an ancestor.
19. - Changing in the frequency of an existing gene in the population