Match the Echinoderm Features with their Functions:

Question

Match the Echinoderm Features with their Functions:

i. Tube feet - 2. Locomotion and feeding

ii. Madreporite - 1. Regulates water entry

iii. Pedicellariae - 3. Defense and cleaning

iv. Radial canal - 4. Distributes water

1. A. i-2, ii-1, iii-3, iv-4 (Correct answer)
2. B. i-1, ii-4, iii-2, iv-3
3. C. i-3, ii-2, iii-1, iv-4
4. D. i-4, ii-3, iii-1, iv-2

Correct Answer

Option A — i-2, ii-1, iii-3, iv-4

Detailed Solution & Explanation

The correct answer is i-2, ii-1, iii-3, iv-4.

Key Points

• Tube feet = locomotion and feeding; Madreporite = water entry regulator (sieve plate); Pedicellariae = defense and cleaning appendages; Radial canal = distributes water in water vascular system.