1. Review Quiz 4
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2. What is coevolution?
A. When more than one species evolves in the same ecosystem and interact with each other.
B. When populations of two different species interact over a long period, and changes in the gene pool of one leads to change in the other.
C. Evolution of a species at two different times over a long period of time.

3. Correct!
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4. Incorrect!
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5. Which of these is an example of parasitism?
A. Cat and a mouse
B. Pollination of flowers by bees
C. Tick on a deer

6. Correct!
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7. Incorrect!
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8. What is mutualism?
A. When two species like each other and live close together
B. When one organism is harmed and the other benefits
C. Two species behave in ways that benefit both by providing some type of needed resource

9. Correct!
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11. Which of these is an example of the way prey evolved to avoid predators?
A. Chemical defense
B. Chemical warfare
C. Burying their head in the sand

12. Correct!
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13. Incorrect!
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14. How can you find out how fast a population is doubling?
The rule of 50 (50/ % growth = doubling time)
B. The rule of 70 (70/ % growth = doubling time)
C. The rule of 60 (60/ % growth = doubling time)

15. Correct!
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17. Which of these is a limiting factor?
A. The number of genes an organism has
B. Mutations in a species
C. The presence or absence of certain physical or chemical factors (e.g., food)

18. Correct!
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19. Incorrect!
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