What most directly allows plankton to grow?
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a. energy from the sun
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b. energy from earth's motion
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c. energy from whales
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d. energy from the movement of water

the reason the two sea urchins don't compete with each other for food, resources, etc. is because the urchins have adapted to the environment but they have also adapted to each other. this is most likely because the genes of the sea urchins.

-hails tea

explanation:

-t poses

d. organisms have cells with different shapes and functions.