Match the following organisms with their respective characteristics: Select the correct option from the following:
- (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
- (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
- (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
- (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
Answer
(4) (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
Solution
(a) Pila (apple snail) is a mollusc; its mouth has a file-like rasping organ, the radula ⇒ (a)-(iii).
(b) Bombyx (silkworm) is an arthropod; excretion takes place through Malpighian tubules ⇒ (b)-(iv).
(c) Pleurobrachia is a ctenophore; it bears eight external rows of ciliated comb plates for locomotion ⇒ (c)-(ii).
(d) Taenia (tapeworm) is a platyhelminth; specialised flame cells help in osmoregulation and excretion ⇒ (d)-(i).
Answer: (4)