Across
- 4. Change over time
- 5. study of past and present distribution of organisms
- 6. structure that is inherited from ancestors but has lost much or all of its original function
- 7. body parts that share a common function, but not structure
- 8. selective breeding of plants and animals to promote the occurrence of desirable traits in offspring
Down
- 1. Preserved remains of ancient organisms
- 2. Structures that are similar in different species of common ancestory
- 3. Also known as survival of the fittest
- 8. heritable characteristic that increases an organism's ability to survive and reproduce in an environment
- 9. how well an organism can survive and reproduce in its environment