Natural Selection Vocab

3. A trait that promotes an organism's success in a particular environment.
4. A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
5. An organism's ability to pass it's genetic material to offspring.
9. The presence of differences in sequences of genes between individual organisms.
11. The identification by humans or desirable traits of plants and animals and the steps it takes to enhance those traits.
12. The act of changing something to make it more suitable for the situation, environment, etc.
14. Relating to or resulting in living organisms, especially in their ecological relations.
16. When species reproduce many more offspring that can possibly survive.
17. Physical rather than biological: not derived from living organisms.
18. How many people are in a single area.

1. In dangerous circumstances, only those individuals most adapted to the environment survive.
2. An animal or plant is a mixture of two different types or breeds.
4. Choosing parents with particular characteristics to breed together and produce offspring with more desirable traits.
6. A distinguishing quality or characteristic.
7. All the people born and living at the same time.
8. An area classified according to the species that live in that location.
10. The process in which new species or populations of living thighs develop from pre-existing forms.
13. A mechanism of evolution that ensures only the fittest survive to pass on their genes to the next generation.
15. The direct or indirect interaction of organisms that leads to a change in fitness when they share the same resources.