Question

protozoa appeared in water ?​

Answer 1

Answer:

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Explanation:

All protozoa rely on water, and they are most commonly observed in freshwater and marine habitats, although some are terrestrial in moist soils and others are exclusively found in the gastrointestinal tracts of animals.

Answer 2

Answer:

Protozoa are single-celled eukaryotes, either free-living or parasitic, which feed on organic matter such as other microorganisms or organic tissues and debris. They first appeared in water. They are motile, nearly all possess flagella, cilia, or pseudopodia that allow them to navigate their aqueous habitats.