MCQ
In amphibia, the heart has
- ATwo auricles and two ventricle
- ✓Two auricles and one ventricle
- COne auricle and two ventricles
- DOne auricle and one ventricle
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| S.no. | Animals | | Morphological features |
| (i) | Crocodile | - | 4-chambered heart |
| (ii) | Sea urchin | - | Parapodia |
| (iii) | Obelia | - | Metagenesis |
| (iv) | Lemur | - | Thecodont |