Across
- 3. A learned or inherited characteristic of an organism
- 5. This is how organisms multiply or increase population
- 6. The amount of one species in a certain area or in the world
- 7. Structure This can appear after years of evolution
- 9. All organisms start of as...
- 10. All the 7 wonders of the world are considered..
Down
- 1. A behavior or gene that is natural
- 2. Can be parts of a building or an organism
- 4. Can be a structure or gene that has a similarity to another
- 8. The study of DNA or RNA (heredity)