Biology, 21.11.2020 05:30 ashleyprescot05
What role do plankton play in the oxygen cycle?
O A. They release carbon dioxide in the ocean.
O B. They produce oxygen in the forests.
C. They produce oxygen in the ocean.
D. They absorb carbon dioxide in the forests.
Answers: 3
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Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.
Answers: 1
What role do plankton play in the oxygen cycle?
O A. They release carbon dioxide in the ocean.
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