MCQ
A connective tissue
- AHas no matrix
- BCovers the skin
- ✓Has abundant matrix
- DNone of these
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$R$ : Bats and whales show echolocation and four chambered heart.
| S.no. | Animals | Morphological features | |
| $(i)$ | Crocodile | $-$ | $4-$chambered heart |
| $(ii)$ | Sea urc hin | $-$ | Parapodia |
| $(iii)$ | Obelia | $-$ | Metagenesis |
| $(iv)$ | Lemur | $-$ | Thecodont |