Which of the following best defines detritivores?

Detritivores are organisms that play a crucial role in ecosystems by consuming dead organic matter. This includes decomposing plant and animal material, as well as other organic materials that are in various stages of decay. By breaking down this matter, detritivores contribute to the recycling of nutrients within an ecosystem, helping to keep the soil healthy and supporting plant growth.

The process of decomposition they facilitate is essential for nutrient cycling, allowing the nutrients contained in dead organic material to be reintroduced into the ecosystem. This is a fundamental aspect of ecological health, as it helps maintain soil fertility and supports the overall productivity of the environment.

The other options do not correctly define detritivores. Some focus on living organisms which are not part of the detritivore diet, while others specify particular types of consumers (carnivorous mammals and herbivorous insects) that do not encompass the broad category of detritivores, which includes a variety of organisms such as earthworms, fungi, and certain types of bacteria.