MCQ
Parathormone induces
- ✓Increase in serum calcium level
- BDecrease in serum potassium level
- CIncrease in blood sugar level
- DDecrease in blood sugar level
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$I$. It checks the mixing of oxygenated and deoxygenated blood in heart
$II$. It circulates only oxygenated blood through heart.
Choose the correct option accordingly
$R$- It serve as a support frame work for epithelium

Label $A, B$ and $C$