List-I | List-II | ||
(A) | Contractile vacuole | (I) | Asterias |
(B) | Water vascular system | (II) | Amoeba |
(C) | Canal system | (III) | Spongilla |
(D) | Flame cells | (IV) | Taenia |
Options: | (A) | (B) | (C) | (D) |
1. | (IV) | (II) | (I) | (III) |
2. | (I) | (III) | (II) | (IV) |
3. | (III) | (II) | (I) | (IV) |
4. | (II) | (I) | (III) | (IV) |
A: | Platyhelminthes are triploblastic pseudocoelomate and bilaterally symmetrical organisms. |
B: | Ctenophores reproduce only sexually and fertilization is external |
C: | In tapeworm, fertilization is internal but sexes are not separate |
D: | Ctenophores are exclusively marine, diploblastic and bioluminescent organisms |
E: | In sponges, fertilization is external and development is direct. |
1. | (A), (C) and (D) only | 2. | (B), (C) and (D) only |
3. | (A) and (E) only | 4. | (B) and (D) only |