Natural Selection

2. the occurrence of an organism in more than one distinct color or form.
3. the father of natural selection
9. the change in the frequency of an existing gene variant in a population due to random chance
12. a change or the process of change by which an organism or species becomes better suited to its environment.
13. an adaptation that is preprogrammed
14. a substance or object required by an organism for normal growth, maintenance, and reproduction
16. the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
17. an organism's ability to survive and reproduce in a particular environment
19. an animal's natural coloring or form that enables it to blend in with its surroundings.
20. 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, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.

1. Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations
4. something that hunts or kills a species
5. the close external resemblance of an animal or plant (or part of one) to another animal, plant, or inanimate object.
6. the condition or period of an animal or plant spending the winter in a dormant state.
7. an adaptation that is learned
8. the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.
10. the product of the reproductive processes of a person, animal, or plant
11. Behaviors that are learned
15. the transfer of genetic material from one population to another
18. a genetically determined characteristic.