Across
- 2. Any changes in DNA
- 7. Physical characteristics
- 8. selection: Some traits are more favorable for survival
Down
- 1. Process by which organisms change overtime
- 3. Different versions of genes
- 4. Short sections of DNA that code for traits
- 5. selection: organisms with desirable traits are selected by humans to breed and pass down traits
- 6. Instructions for an organism to grow and reproduce