Question

an ecologist studying a forest ecosystem compares two groups of organisms that both feed on dead material. she observes that one group includes fungi and bacteria that secrete enzymes onto decaying matter before absorbing nutrients, while the other group includes worms and insects that physically consume the dead matter. which conclusion best explains the ecological roles of these two groups? both groups perform photosynthesis, but only one uses chemical energy from decaying matter. decomposers chemically break down organic material externally, while detritivores ingest and digest dead matter internally. detritivores use sunlight to create simple sugars, while decomposers rely on cellular respiration for energy. decomposers feed only on animal remains, while detritivores feed only on plants.

Explanation:

Decomposers (like fungi and bacteria) chemically break down organic matter externally by secreting enzymes. Detritivores (like worms and insects) ingest and digest dead matter internally. The option about decomposers chemically breaking down organic material externally while detritivores ingest and digest dead matter internally correctly differentiates their ecological roles.

Answer:

Decomposers chemically break down organic material externally, while detritivores ingest and digest dead matter internally.