- A. Annelids are true coelomates– True. Annelids have a true coelom, which is a body cavity completely lined by mesoderm.
- B. Poriferans are pseudocoelomates- False. Poriferans (sponges) are acoelomates, meaning they lack a true body cavity.
- C. Aschelminthes are acoelomates– False. Aschelminthes are pseudocoelomates, meaning they have a body cavity that is not fully lined by mesoderm.
- D. Platyhelminthes are pseudocoelomates– False. Platyhelminthes (flatworms) are acoelomates, meaning they lack a body cavity.
Thus, the correct answer is A only, so the correct answer is (1).
List - I | List – II | ||
A. | Chondrichthyes | i. | Clarias |
B. | Cyclostomata | ii. | Carcharodon |
C. | Osteichthyes | iii. | Myxine |
D. | Amphibia | iv. | Ichthyophis |
List I | List II | ||
---|---|---|---|
A | Mesozoic Era | I | Lower invertebrates |
B | Proterozoic Era | II | Fish & Amphibia |
C | Cenozoic Era | III | Birds & Reptiles |
D | Paleozoic Era | IV | Mammals |