NATURAL SELECTION

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Across
  1. 4. The process where animals with helpful traits are more likely to survive and reproduce.
  2. 5. The number of a specific species in a given area.
  3. 7. The slight differences that exist among offspring.
  4. 9. The change in species over many generations due to natural selection.
  5. 12. of the fittest, A phrase that describes how animals with the most helpful traits are most likely to survive.
  6. 13. The young or children of an animal.
  7. 14. selection, The process by which species change over time, where animals with helpful traits survive and pass those traits to their offspring.
  8. 15. A group of similar animals that can reproduce.
Down
  1. 1. Helpful traits that increase an animal's chances of survival.
  2. 2. The long period over which natural selection causes species to change.
  3. 3. The concept that animals have more young than can survive.
  4. 6. Characteristics or features of an animal.
  5. 8. The struggle among offspring to survive due to limited resources.
  6. 10. The passing of helpful traits from parents to offspring through genes.
  7. 11. Things like food, water, shelter, and mates that animals compete for.