Refer the following animals and identify those which have a fluid-filled body cavity with a complete mesodermal lining (true coelom).
(i) Sycon (ii) Butterfly (iii) Nereis (iv) Sea fan (v) Scorpion (vi) Pila
Choose Your Option
A. (i) and (iii) only
B. (ii) and (iv) only
C. (ii), (iii), (v) and (vi) only
D. All of these
Solution & Explanation
No details explanation available for this question. Option C is the verified correct answer.