Question

What are useful Protozoans

Answer 1

Answer:

Protozoans serve as food for many small aquatic organisms. Zooplankton are tiny protozoans which live in the sea. They form the principal diet of blue whales, who gulp them in with sea water. 2. They are the ultimate decomposers in nature, as they feed on bacteria and fungi, which decompose dead organic matter

Answer 2

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Protozoa play an important role in mineralizing nutrients, making them available for use by plants and other soil organisms. Protozoa (and nematodes) have a lower concentration of nitrogen in their cells than the bacteria they eat. ... Another role that protozoa play is in regulating bacteria populations.