Across
- 3. science as a botanical and zoological systematist,
- 6. receive (money, property, or a title) as an heir at the death of the previous holder.
- 9. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
- 10. develop gradually, especially from a simple to a more complex form.
- 11. the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA,
- 12. a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method
Down
- 1. theory of evolution by natural selection
- 2. the process whereby organisms better adapted to their environment tend to survive and produce more offspring
- 4. a defense mechanism or tactic that organisms use to disguise their appearance
- 5. based on the idea that all species? are related and gradually change over time.
- 7. the action or process of adapting or being adapted.
- 8. a change or difference in condition, amount, or level, typically with certain limits