In a typical mollusc:
I: | Head, muscular foot and visceral hump are body segments. |
II: | Mantle over the visceral hump is formed by a layer of skin. |
III: | Radula is a file-like rasping organ |
1. | Only III is correct |
2. | Only II and III are correct |
3. | Only I and III are correct |
4. | Only I and II are correct |
The largest phylum of marine animals is:
1. | Arthropoda | 2. | Echinodermata |
3. | Cnidaria | 4. | Mollusca |