Examine the figures A, B, C and D. In which one of the four options all the items A, B, C and D are correct?
| (A) | ![]() |
(B) | ![]() |
| (C) | ![]() |
(D) | ![]() |
Options:
| A | B | C | D | |
| 1. | Ophiura | Unio | Antedon | Sepia |
| 2. | Asterias | Dentalium | Echinus | Sepia |
| 3. | Asterias | Pila | Ophiura | Octopus |
| 4. | Asterias | Unio | Ophiura | Sepia |
Echinoderms are
| 1. | Triploblastic | 2. | Coelomate animals |
| 3. | all marine | 4. | All of the above |
Water Vascular system helps in
1. Locomotion
2. Food capture and transport
3. Respiration
4. All of these
| 1. | Water vascular system |
| 2. | Open circulatory system |
| 3. | Pseudocoelom |
| 4. | Chitinous exoskeleton |
Which of the following is true about Digestive system of Echinoderms?
| 1. | Mouth is Ventral |
| 2. | Anus is Dorsal |
| 3. | Digestive System is complete |
| 4. | All of the above |
In which of the following the larvae are bilaterally symmetrical and the adult are radially symmetrical?
1. Cnidaria
2. Echinodermata
3. Pleurobrachia
4. Mollusca
| 1. | Syconoid canal system |
| 2. | Water vascular system |
| 3. | Metamerism |
| 4. | Segmentation |
| List-I (Biological Name) |
List-II (Common name) |
||
| A. | Asterias | I. | Sea urchin |
| B. | Antedon | II. | Brittle star |
| C. | Echinus | III. | Sea lily |
| D. | Ophiura | IV. | Star fish |
| 1. | A-III, B-IV, C-II, D-I |
| 2. | A-IV, B-III, C-I, D-II |
| 3. | A-II, B-III, C-I, D-IV |
| 4. | A-I, B-II, C-IV, D-III |