MCQ
Where does the ovum receive the sperm?
- AZona pellucid.
- ✓Vegetal pole.
- CZona local
- DNone of these.
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$(1)$ Salt concentration in inland water - $30-35\%$
$(2)$ Salt concentration in the sea - $5\%$
$(3)$ Salt concentration in hypersalinelagoon - $>100\%$