Across
- 6. The series of chemical reactions
- 7. The number of organisms in an area
- 9. Receive a specific trait
- 10. A body feature or behavior that no longer has a purpose
Down
- 1. Same; similar features
- 2. An organism's child
- 3. An obvious characteristic
- 4. Make a copy of
- 5. The study of how traits are passed down from parent to offspring
- 8. The arrangement of parts or elements