Animals | Morphological features | |
(a) | Scorpion, spider, cockroach | Ventral solid nerve cord |
(b) | Centipede, prawn, sea-urchin | Joined appendages |
(c) | Cockroach, Locust, Taenia | Metameric segmentation |
(d) | Liver fluke, sea-anemone, sea-cucmber | Bilateral symmetry |
Column-I | Column-II | ||
A. | Planula | i. | Annelida |
B. | Tornaria | II. | Mollusca |
C. | Trochophore | iii. | Arthropoda |
D. | Bipinnaria | iv. | Hemichordata |
E. | Glochidium | v. | Echinodermata |
vi. | Coelenterata |
Assertion (A): | Annelids have segments or metameres which are distinctly marked out. |
Reason (R): | The word Annelida is derived from the Latin word annulus which means little rings. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |