Natural Selection
Across
- 1. process by which individuals that are better suited to their environment survive and reproduce most successfully; the process called natural selection
- 4. A naturalist who formulated a theory of evolution by natural selection (1809-1882)
- 8. Ability of an organism to survive and reproduce in its environment
- 11. 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.
- 12. An inherited trait that helps an organism survive and reproduce.
- 13. Environmental factors which affect an organism's ability to survive in a given environment. Ex) Predation, climate change, pollution.
- 14. Change over time; process by which modern organisms have descended from ancient organisms.
- 15. By comparing fossils from older rock layers with fossils from younger layers, scientists could document the fact that life on Earth has changed over time
Down
- 2. Structures in different species that are similar because of common ancestry.
- 3. Formation of new species
- 5. Evidence in DNA that shows evolution has occurred.
- 6. Competition among members of a species for food, living space, and the other necessities of life
- 7. A form of natural selection in which individuals with certain inherited characteristics are more likely than other individuals to obtain mates.
- 9. Change in a DNA sequence that affects genetic information
- 10. A structure that is present in an organism but no longer serves its original purpose.