Natural Selection & Evolution

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