Wetlands are the ecosystem that consists of flooded water and includes swamps and marshes. Aquatic insects feed on the detritus found in the wetlands.
Dead matter or the organic remains of the plant and animal bodies, and faecal matter are called detritus. They are the litter or the waste that gets decomposed by a certain type of microorganisms.
It is an important aspect of the ecosystem as it serves as a food resource for aquatic insects and organisms. The aquatic insects have various feeding modes and habits and depending on their eating habits they acquire their prey and food source.
Therefore, option A. aquatic insects feed on the detritus found in wetlands.
Learn more about detritus and aquatic insects here:
https://brainly.com/question/1638081
