Question

which of the following best describes the flow of energy in most terrestrial and near - surface ecosystems? a. decomposers break down dead or decaying organisms to release energy and nutrients to be used by producers. b. chemoautotrophs use inorganic energy sources, such as hydrogen sulfide, to create organic compounds from carbon dioxide. c. apex predators feed on other organisms, which releases heat that can be used by producers and primary consumers. d. producers use energy from the sun to make organic matter, such as sugars, from carbon dioxide and water and are then consumed by organisms higher in the food chain.

Explanation:

Decomposers play a crucial role in energy - flow in ecosystems. They break down dead or decaying organisms, releasing nutrients back into the environment which can then be used by producers. This is a key part of the energy cycle in terrestrial and near - surface ecosystems.

Answer:

A. Decomposers break down dead or decaying organisms to release energy and nutrients to be used by producers.