Yolk of egg in the vertebrates is formed in
Ovum
Lungs
Liver
Kidney
It's Obvious
Mammary glands are modified
At which phase, both $LH$ and $FSH$ attain a peak level?
The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for
Which of the following labelled parts produces energy for the movement of the tail that facilitate sperm motility essential for fertilisation?
Releasing of sperms from seminiferous tubules is called
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