Why are decomposers such as bacteria important to an ecosystem's food web?

they recover nutrients from dead matter and waste.
they feed the primary producers.
they take in energy from inorganic compounds.
they provide nutrition directly to consumers.

The correct answer would be They recover nutrients from dead matter and waste.

Decomposers refer to organisms which get their nutrition by breaking down the dead organic waste (dead animals and plants).

They decompose the dead matter and return the nutrients to the ecosystem.

Decomposers include bacteria, fungi, and some insects.

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

answer; both surfaces of the membrane are nonpermeable