MCQ
Viral infection is usually absent in
- APhloem cells
- BXylem cells
- CPith cells
- ✓Apical meristem
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Choose the correct choice for $A$ and $B$
$(1)$ Salt concentration in inland water - $30-35\%$
$(2)$ Salt concentration in the sea - $5\%$
$(3)$ Salt concentration in hypersalinelagoon - $>100\%$
Reason : Acrosome contains spiral row of mitochondria.