MCQ
Copper$-T$ prevents:
- AOvulation
- BFertilization of egg
- CSperm Motility
- ✓Both $(B)$ and $(C)$
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$R$ : All vertebrates have hepatic portal system.
$(I)$ Central nervous system is ventral, solid and double
$(II)$ Gill slits are absent
$(III)$ Heart is ventral
$(IV)$ Post anal tail is absent