Energy
Across
- 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.
Down
- 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.