A
1, 2 and 4 only
B
2, 3, 4 and 5 only
C
1, 3 and 5 only
D
1, 2, 3, 4 and 5
Correct answer: (c) 1, 3 and 5 only
Explanation
- A
1, 2 and 4 only
1, 2 and 4 only. Jellyfish and seahorses are not detritivores.
- B
2, 3, 4 and 5 only
2, 3, 4 and 5 only. Keeps the two that fail.
- C
1, 3 and 5 only
1, 3 and 5 only. Earthworm, millipede, woodlouse — litter feeders. Jellyfish and seahorse are not.
- D
1, 2, 3, 4 and 5
All five. Two are consumers of live prey/plankton.
Summary. Official key is (c) 1, 3 and 5 only. Detritivores eat dead organic matter: earthworms, millipedes, woodlice. Jellyfish and seahorses do not.