MCQ
When a sperm enters an egg of frog
- AFirst polar body is formed
- BFirst meiotic division occurs
- ✓Second meiotic division occurs
- DFertilization process is compeleted
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$I.$ $A$ might be before $B$ and $C$
$II.$ $B$ might be between $A$ and $C$
$III.$ $C$ might be between $A$ and $B$
$IV.$ More crosses has occurred between $A$ and $C$ than $A$ and $B$
$R$ : Thyroxine increases catabolism, produces energy and increases body temperature.