Match the following and choose the correct option.
Column I | Column II | ||
(a) | Sea fan | (i) | Comb plates |
(b) | Sea walnut | (ii) | Water vascular system |
(c) | Sea urchin | (iii) | Radula |
(d) | Sea hare | (iv) | Polyp |
a | b | c | d | |
1. | iii | ii | i | iv |
2. | i | iv | ii | iii |
3. | iv | i | ii | iii |
4. | iv | i | iii | ii |
Sea fan (Cnidaria) | Polyp (medusa stage is absent in anthozoans) |
Sea walnut (Ctenophora) | Comb plates |
Sea urchin (Echinodermata) | Water vascular system |
Sea hare (Mollusca) | Radula |