MCQ
A radially symmetrical diploblastic animal is
- ARoundworm
- BEarthworm
- ✓Hydra
- DLiver Fluke
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| S.no. | Animals | Morphological features | |
| $(i)$ | Crocodile | $-$ | $4-$chambered heart |
| $(ii)$ | Sea urc hin | $-$ | Parapodia |
| $(iii)$ | Obelia | $-$ | Metagenesis |
| $(iv)$ | Lemur | $-$ | Thecodont |