Natural Selection

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Across
  1. 4. A group of organisms with very similar DNA whose members can use sexual reproduction to produce offspring that are also able to reproduce.
  2. 5. Differences in characteristics of members of a species that are the result of differences in genes.
  3. 7. An error in the DNA sequence made by insertion, substitution or deletion
  4. 8. Units of heredity made of DNA
  5. 9. A living or nonliving part of an ecosystem whose availability limits the size of a population.
Down
  1. 1. The way an organism's body systems function to keep it healthy
  2. 2. The way an organism acts as it responds to a stimulus or change its surroundings
  3. 3. A trait that helps an organism survive and reproduce in a certain environment
  4. 4. The way something is built or how its physical parts are put together
  5. 6. Selection A process in which organisms that do well in an environment pass their genes on to the next generation