Animal Kingdom Question 32

Question: Which of the following statements (i) to (v) are incorrect?

(i) Parapodia are lateral appendages in arthropods used for swimming. (iii) In molluscs radula is responsible for the process of excretion. (iii) Aschelminthes are dioecious. (iv) Echinoderm adults show radial symmetry. (v) Ctenophorans are diploblastic.

Options:

A) (i) and (ii)

B) (i) and (iii)

C) (i), (iv) and (v)

D) (iii) and (v)

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Aquatic annelids like Nereis possess lateral appendages (called parapodia) which help in swimming.

Radula is the rasping organ for feeding which is present in the mouth of molluscs.