MCQ
What is left, when bathsponges dries up
- ASpicules
- BHoldfast
- CTentacles
- ✓Spongin fibres
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|
Column $-I$ |
Column $-II$ |
|
$(a)$ Land snail |
$(1)$ Urea |
|
$(b)$ Cartilaginous fishes |
$(2)$ Uric acid |
|
$(c)$ Marine fishes |
$(3)$ Ammonia |