MCQ
What is correct for vertebral column?
- AFormed by $26$ vertebraesent
- BDoersally arranged
- CProtects the spinal cords
- ✓All correct
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| Animals | Morphological features | |
| $(i)$ | Crocodile | $4$-chambered heart |
| $(ii)$ | Sea urchin | Parapodia |
| $(iii)$ | Obelia | Metagenesis |
| $(iv)$ | Lemur | Thecodont |
