Natural Selection & Evolution
Across
- 2. A group of individuals of the same species that live in the same area.
- 4. A change in an organism's environment that affects its ability to survive and reproduce.
- 5. A segment of DNA that codes for a trait.
- 7. Traits gained through experiences, learning, or environmental factors; will not be passed on to offspring.
- 12. The English naturalist who came up with the theory of evolution by natural selection.
- 13. A characteristic
- 15. The surroundings or conditions in which an organism lives and operates.Evolution Change over time
- 17. A feature of the physical body.
- 18. A period of inactivity that is a behavioral adaptation to winter cold and food scarcity.
- 19. The process by which individuals that are better adapted to their environment survive, reproduce, and pass on their traits more successfully than less well adapted individuals.
Down
- 1. A process where individuals that are more "fit" for their environment survive, reproduce, and pass on their traits. (natural selection)
- 3. The wide range of living things on Earth.
- 6. A behavioral adaptation in which a species moves from one place or region to another to find food or a warmer place.
- 8. A change in the genetic code; responsible for a lot of variation in populations of organisms.
- 9. The dying out of a species of organism.
- 10. Differences in traits in populations of organisms.
- 11. Traits passed from parents to offspring.
- 14. The child (or children) from a parent.
- 16. An inherited trait that improves an organism's chance of survival in its environment.
- 20. A behavior that has been learned from experience or observation is a __________ behavior.