Across
- 2. what you would call a species from which many others descend
- 5. a group of organisms of the same species, living in the same location
- 7. tailbones in humans, for example
- 8. adaptive _________
- 9. a branch of biology that studies evolutionary relationships between organisms, and might represent them on a "tree"
Down
- 1. structures that are observed in comparative anatomy to study evolution
- 3. the "father of evolution"
- 4. type of evolution where separate species evolve similar traits
- 6. the process by which the fittest organisms survive and reproduce most successfully