MCQ
The mineral necessary for nervous conduction is
- AIron
- ✓Sodium
- CPhosphorus
- DMagnesium
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$I.$ Liver, $II.$ Salivary gland
$III.$ Pituitary gland, $IV.$ Thyroid
Choose the correct option.
| Column-$I$ | Column-$II$ |
| $A$. Tonoplast | $I$. Contain digestive enzyme |
| $B$. Contractile vacuole | $II$. Store metabolic gases |
| $C$. Food vacuole | $III$. Excretion |
| $D$. Air vacuole | $IV$. Transport of ions in plants |