Why the testes are situated in the scrotum, which is located outside the abdominal cavity ?
To protect from pressure by internal organs.
Providing more space for the growth of epididymis
External sexual characters appear in the male.
To get the low temperature needed for spermatogenesis.
Blastodisc or germinal disc refers to the protoplasm of egg, this is restricted to small area in
Yolk of egg in the vertebrates is formed in
Meroblastic cleavage refers to which type of division of egg
The shock absorber fluid of the developing embryo is known as
Which of the following is true regarding sperm ?