Question

a ________ is the motile feeding stage of protozoa.
trophozoite
cyst
spore
endospore

Explanation:

To solve this, we analyze each option:

• Trophozoite: The motile, feeding stage of protozoa.
• Cyst: A dormant, protective stage of protozoa, not feeding or motile.
• Spore: Reproductive structure in fungi/protozoa (like sporozoans), not the general feeding stage.
• Endospore: A bacterial structure for survival, not related to protozoa's feeding stage.

So the correct term is trophozoite.

Answer:

A. trophozoite