Question

Choose the correct answers from the alternatives given.
The tube feet of echinoderms:

• A. are their head
• B. are a part of the water vascular system
• C. are found in the coelom
• D. help pass sperm to females during reproduction

Answer 1

The correct option is B are a part of the water vascular system

Tube feet are small active tubular projections on the oral face of an echinoderm, whether the arms of a starfish or the undersides of sea urchins, sand dollars and sea cucumbers. They are part of the water vascular system. They are part of the water vascular system of echinoderms. Tube feet are used to move, feed and respiration. Tube feet are used by starfish are used to open up bivalve shells.

So, the correct option is, 'are a part of the water vascular system'.