In which of the following organism testes descends into scrotum in breeding season but in non-breeding season goes up
Frog
Kangaroo
Shrew
Bat
It's Obvious
Capacitation occurs in
In human, beings, after ………….. month of pregnancy, the embryo's heart is formed.
The sperm produces substances of enzymatic nature called sperm lysin. In mammals, it is called
From which embryonic structure develops the vertebral column
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