What are common food sources for mosquito larvae?

The correct answer identifies algae, bacteria, yeast, fungi, and protozoans as common food sources for mosquito larvae. This is accurate because mosquito larvae predominantly inhabit aquatic environments, such as ponds, marshes, and containers with standing water, where they feed on organic matter.

Algae serve as a significant food source due to their abundance in stagnant water where larvae thrive. Bacteria are another crucial part of their diet, offering essential nutrients, especially in biofilm form. Yeast and fungi also contribute to the food web by breaking down organic materials to create a rich environment for larvae growth. Protozoans, although not the primary food source, can be ingested incidentally as larvae filter feed.

This choice reflects the larval feeding habits and their ecological interactions within their habitats, emphasizing that they typically feed on microorganisms and decomposed organic material rather than larger organisms or more complex food chains. Other options either include incorrect or less relevant food sources that are not primarily associated with mosquito larvae diets.