natural selection

4. science as a botanical and zoological systematist,
5. a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method
8. receive (money, property, or a title) as an heir at the death of the previous holder.
9. the process whereby organisms better adapted to their environment tend to survive and produce more offspring
10. a change or difference in condition, amount, or level, typically with certain limits
11. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
12. theory of evolution by natural selection

1. a defense mechanism or tactic that organisms use to disguise their appearance
2. 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,
3. develop gradually, especially from a simple to a more complex form.
6. based on the idea that all species? are related and gradually change over time.
7. the action or process of adapting or being adapted.