Natural Selection

6. when variations are measured or counted, most fall within average with few extremes
11. a species making more of themselves
13. a characteristic of an organism
14. a short burst of evolution, often in reaction to a change in the environment
15. reproduction that involves only one parent and produces clones
16. changes in the genetic code that result in new characteristics
17. differences between members of the same species

1. producing more young than can possibly survive
2. a group of organisms in the same place that are all the same species
3. organisms best suited to live in their environment will survive, be able to reproduce, and pass their genes on into the next generation
4. reproduction that involves two parents and results in varied offspring
5. the process by which organisms change over time
7. differences that occur because of new genetic combinations
8. process where organisms that are best suited to their environment live better and pass on genes for their traits
9. a type of evolution where small changes add up over time
10. the British naturalist who developed the theory of Natural Selection
12. beneficial variations that enable organisms to live better