Depends whats in the house.
a fly eats by its feet
A fly is a decomposer but not in the tundra.
All of them
Call your cat. My cat eats any flies that attack me.
Anything they can get their hands on fruit garbage sugar uncOvered foods
They eat fish that are salmon and they eat the birds that fly around anyway they eat lettuce and ather kind of foods
the flower mantis baby will eat fruit fly's and house fly's adults will eat any thing from crickets to moths.
a fly eats by it's feat
A Green Fly
A fly of maggot...
spider
Spider