noun
EXAMPLES FROM CORPUS
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Against the pale background the plankton which swarmed on the surface were clearly visible.
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All creatures that live in the plankton have to devise means of staying afloat.
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Because the creatures of the plankton individually are small, they are not always visible to the naked eye.
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Cod, for instance, lay about nine million eggs into the plankton .
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Creatures that float near the surface of the seas are called plankton .
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The plankton , he said, produce natural chemicals whose effect is similar to that of oil on the water.
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The ocean had so much plankton in it that the sea itself had changed colour.
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Through most of the summer, then, the plankton in open ocean is gradually depleted.