Across
- 3. A trait that is passed on
- 4. Ability to have many offspring
- 6. Proposed uniformitarianism
- 10. is the difference in an expression of a trait.
- 11. Is the measure of the ability to survive
- 13. Organisms create offspring that are fertile.
- 14. Theory stating change is uniform
Down
- 1. Organisms that mate & reproduce fertile young.
- 2. is a feature allowing an organism to survive
- 5. selection Humans change species by breeding
- 7. A biological change within a population.
- 8. Traces of organisms that existed in the past
- 9. Proposed all natural selection.
- 12. Said environment caused organisms to change