Civil Services Prep

Prelims 2021 · Environment · Question 28

Which of the following are detritivores?

  1. Earthworms
  2. Jellyfish
  3. Millipedes
  4. Seahorses
  5. Woodlice

Select the correct answer using the code given below.

  1. 1, 2 and 4 only
  2. 2, 3, 4 and 5 only
  3. 1, 3 and 5 only
  4. 1, 2, 3, 4 and 5

Answer

1, 3 and 5 only

1. Earthworms — Detritivores; they feed on dead and decaying organic matter in soil. Correct.

2. Jellyfish — Carnivorous aquatic animals; they prey on plankton and small fish, not detritus. Incorrect.

3. Millipedes — Detritivores; they commonly feed on decaying leaves and plant litter. Correct.

4. Seahorses — Carnivorous fish; they eat small crustaceans and planktonic organisms. Incorrect.

5. Woodlice — Detritivores; they feed on decomposing plant material. Correct.

Thus, 1, 3 and 5 only are detritivores. Answer: (c).

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