Describe three ways in which the environment benefits from protists?

Answer 1

1. Algae start many food chains and provide oxygen for aquatic ecosystems as well as oxygen that moves into the atmosphere.
2. Slime molds are decomposers that help move nutrients from dead matter and wastes back into the ecosystem for autotrophs to take up.
3. Protozoa are parts of aquatic and soil-based food webs, feeding on bacteria and other protists, and providing food for the next trophic level.