Uric acid is generally excreted by:

Explanation

The correct answer is Option C: Insects. Insects excrete uric acid because it is a less toxic form of nitrogenous waste that requires minimal water for excretion, which is crucial for their survival in terrestrial environments. Insects have efficient excretory systems, such as Malpighian tubules, that help in conserving water by excreting uric acid in a highly concentrated form.Option A is incorrect because not all land animals excrete uric acid; for example, mammals typically excrete urea. Option B is incorrect because freshwater animals often excrete ammonia directly into their aqueous environment. Option D is incorrect because amphibians, particularly when adult, primarily excrete urea rather than uric acid.