Question Detail

MIC 121 Protozoa Objective Question

Question

How do soil-dwelling protozoa contribute to soil fertility enhancement?
Options
A By producing complex organic compounds that enrich the soil.
B By breaking down dead plant and animal matter directly.
C By grazing on bacteria, releasing excess nitrogen and phosphorus back into the soil.
Correct Answer
D By creating channels in the soil that improve aeration.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The text states, 'Soil-dwelling protozoa graze on bacteria, releasing excess nitrogen and phosphorus back into the soil. This process directly enhances soil fertility and supplies essential nutrients for plant growth.'

Hint

Consider the specific interaction mentioned between protozoa and other microorganisms in the soil and its outcome.

Question Info