An important marine autotroph that has SiO2 incorporated in the cell walls are:
A) coccolithophorids.
B) cyanobacteria.
C) diatoms.
D) dinoflagellates.
E) radiolarians.
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A)
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A)light-limited.
B)nutrient-limited.
C)oxygen-limited.
D)light and nutrient-limited.
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A)bi-directional.
B)cyclic.
C)semi-conservative.
D)top down.
E)unidirectional.
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