Annelids and arthropods: Bilateral symmetry: Correct. Both phyla exhibit bilateral symmetry.
Sponges: Acoelomates: Correct. Sponges lack a coelom (body cavity).
Coelenterates and Ctenophores: Radial symmetry: Correct. Both phyla exhibit radial symmetry.
Platyhelminthes: Diploblastic organisation: Incorrect. Platyhelminthes (flatworms) are triploblastic, meaning they have three germ layers (ectoderm, mesoderm, and endoderm). Diploblastic organisms only have two germ layers (ectoderm and endoderm).
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 |