MCQ
Basophils secrete:
- AHistamine
- BSerotonin
- CHeparin
- ✓All of these
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$I$. they are nucleated
$II$. they are denucleated like $RBC$
$III$ they are $6000-8000 \;m m ^{-3}$ of blood
$IV$. they are long lived
$V$, they are short lived
Choose the appropriate option with correct properties
| Alveolar Air | Atmospheric Air | |
| $p O _{2}$ | $ X$ | $ Y$ |
| $pCO _{2}$ | $A$ | $B$ |