Across
- 5. man made genes
- 8. the study of early stages of development
- 9. the study of the human body
- 10. structures that we no longer use or need
Down
- 1. a trait that helps the animal survive
- 2. dinosuar bones
- 3. different structure similar function
- 4. triats passed down from generation to the next
- 6. an explanation that is backed by evidence
- 7. similar structure different function