Across
- 3. Descent with modifications
- 5. A changes in our DNA
- 6. Contains the genes of an organism
- 7. Organisms trying to obtain resources
- 9. A trait we develop or learn
Down
- 1. Too many individuals of a given species
- 2. Differences within the same species
- 4. New organisms produced by a living thing
- 8. A trait that is passed on in our DNA