Across
- 2. Change over time
- 5. An individual animal, plant, or single-celled life form
- 6. Preserved remains found in the ground
- 7. A characteristic that helps an organism survive
- 9. Selection when change occurs through variation between individuals
- 11. Came up with the theory of evolution by natural selection
Down
- 1. When two species evolve together
- 3. When animals disappear from the earth
- 4. Natural selection is also known as the survival of the_
- 7. Organisms who are descended from family
- 8. Selection man made by humans for desired traits
- 10. A particular characteristic of an individual plant or animal