Science

3. the disguising of military personnel, equipment, and installations by painting or covering them to make them blend in with their surroundings.
6. a feature or quality belonging typically to a person, place, or thing and serving to identify them.
10. made or produced by human beings rather than occurring naturally, especially as a copy of something natural.
11. existing in something as a permanent, essential, or characteristic attribute.
12. a person's child or children
13. the surroundings or conditions in which a person, animal, or plant lives or operates.

1. the action or process of adapting or being adapted.
2. the natural home or environment of an animal, plant, or other organism.
4. the process by which different kinds of living organism are believed to have developed from earlier
5. the remains or impression of a prehistoric plant or animal embedded in rock and preserved in petrified form
7. the action or process of copying something.
8. a group of living organisms
9. a change or slight difference in condition, amount, or level, typically within certain limits.