A) ureotelic when plenty of water is available
B) uricotelic when plenty of water is available
C) uricotelic under conditions of water scarcity
D) ammonotelic when plenty of water is available
Correct Answer: D
Solution :
Class-Oligochaeta includes terrestrial earthworms and some other species that live in fresh water. Aquatic oligochaetes excrete ammonia, while terrestrial oligochaetes excrete urea but Lumbricus produces both ammonia and urea.
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