system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How are mosquitoes beneficial to the ecosystem in any way?
gpt
As larvae, mosquitos are filter feeders that strain tiny particles such as algae out of water.  The larvae may then be eaten by fish.

As adults, they're eaten by birds, bats, frogs and spiders.

Mosquitos are an important part of the food chain.