Energy

3. An organism's physical appearance, or visible traits.
5. relating to genes or heredity
8. Selection A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
10. A group of similar organisms that can breed and produce fertile offspring.
13. Darwin -Evolution by "natural selection" (the weaker die out) wrote On the Origin of Species
14. drift A change in the allele frequency of a population as a result of chance events rather than natural selection.
15. factor Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms.
17. frequency (allele frequency) The relative occurrence of a specific allele in a population
18. of Evolution states that organisms change and develop over time to adapt an increase rate of survival
19. a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring. Segment of DNA on a chromosome that codes for a specific trait.

1. Passing of traits from parents to offspring
2. Physical & Behavioral traits that make an organism more likely to reproduce in their environment
4. A group of individuals that belong to the same species and live in the same area
6. Change in a kind of organism over time; process by which modern organisms have descended from ancient organisms.
7. A characteristic that an organism can pass on to its offspring through its genes.
9. A characteristic that improves an individual's ability to survive and reproduce in a particular environment.
10. of the fittest Another term for natural selection
11. An alternative form of a gene.
12. the formation of new and distinct species in the course of evolution.
16. A change in a gene or chromosome.