Method of breathing of eqight aquatic animals.?

Question

Group A: Crab, damselfly nymph

Group B: seal, walrus

group C: tubifex worm, tadpole

group D: water stick insect, mosquito larva.

(a)One animal in the diagram has been classified wrongly. Name the animal.

(b) In which group (A, B, C, D) should this animal be classified. Why?

(c) The water beetle cannot be placed in any of the groups above. Explain why.

Answer 1

(a) I suppose its Crab

(b) In B. It contains large aquatic animals

.

(c) This is because the water beetle bleongs to both the categories as it is intertidal. The groups given above only discuss specific categories.

I know I might not be right but please tell me what are the corrrect answers. Thankyou!