Discussion
Which of the following is an example of a Detritivores?
Answer: A
The earthworm is a detritivore: it feeds on dead and decaying organic matter (detritus) and breaks it down, which returns nutrients to the soil.
The crow is an omnivore and scavenger, the vulture is a carrion eater (a scavenger and not a detritus feeder), and fungi are decomposers that digest matter outside their bodies by enzymes, not detritivores that ingest it.
Detritivores differ from decomposers: a detritivore swallows dead matter and digests it inside its body, as earthworms, millipedes and woodlice do, while decomposers such as fungi and bacteria digest it outside the body by releasing enzymes. This distinction rules out fungi, and crow and vulture are scavengers or predators that eat dead animals, not detritus.
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