# During unfavorable conditions, certain bacteria produce:
A. Ribosomes
B. Plasmids
C. Mitochondria
D. Spores
The correct answer is: D. Spores.
During unfavorable conditions, certain bacteria produce spores, which is a rounded resistant form.
Bacterial spores are highly resistant, dormant structures (i.e. no metabolic activity) formed in response to adverse environmental conditions. They help in the survival of the organisms during adverse environmental conditions; they do not have a role in reproduction.
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