Natural Selection

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Across
  1. 5. Any change in the DNA sequence of a cell
  2. 6. an organism that consumes all or part of the body of another—living or recently killed—organism, which is its prey
  3. 9. one that an organism develops as a result of experience
  4. 12. natural scientist who formulated a theory of evolution by natural selection
  5. 13. the biological mechanism by which organisms adjust to new environments or to changes in their current environment.
  6. 14. the change in frequency of an existing gene variant in the population due to random chance
  7. 16. the process of organisms adapting and changing
  8. 19. an inborn impulse or motivation to action typically performed in response to specific external stimuli
Down
  1. 1. a defense mechanism or tactic that organisms use to disguise their appearance, usually to blend in with their surroundings.
  2. 2. the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.
  3. 3. examines the behavior of humans and animals and investigates which behavior is innate and which skills are learned in the course of life
  4. 4. the transfer of genetic material from one population to another
  5. 7. the appearance of differences in the magnitude of response among individuals in the same population given the same dose of a compound.
  6. 8. the product of the reproductive processes of a person, animal, or plant
  7. 10. a process that results in changes in the genetic material of a population over time
  8. 11. a substance or object required by an organism for normal growth, maintenance, and reproduction
  9. 15. the ability to survive to reproductive age, find a mate, and produce offspring.
  10. 17. the similarity of one organism (the mimic) to another (the model) that enhances the mimic's fitness through its effect on the behavior of a third party, the operator
  11. 18. a way animals conserve energy to survive adverse weather conditions or lack of food
  12. 20. a specific characteristic of an individual