MCQ
In cockroach, nephrocytes are concerned with
- ADigestion
- BReproduction
- CTransport of nerve impulse
- ✓Excretion
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Thus, $C O_{2}$ is trapped as ...$C$... at the tissue level and transported to alveoli is released out as ...$D$...
Select the right choice for $A, B, C$ and $D$ to complete the given $NCERT$ statement