The mother germ cells are transformed into a mature follicle through series of steps. Provide the missing steps in the blank boxes.
$\boxed{{\text{Oogonia}}}$ $\to $ $\boxed{\text{A}}$ $\to $ $\boxed{{\text{Primary follicle}}}$ $\to $ $\boxed{\text{B}}$ $\to $$\boxed{\text{C}}$ $\to $ $\boxed{{\text{Mature or Graafian follicle}}}$
$\mathrm{A}=$ Primary oocyte, $\mathrm{B}=$ Secondary follicle, $\mathrm{C}=$ Secondary oocyte
Which of the following labelled parts produces energy for the movement of the tail that facilitate sperm motility essential for fertilisation?
Prostate gland surrounds the $...A....$ It produces milky, slightly alkaline solution which forms $...B..$ volume of the semen. The secretion contains $...C...$ acid and enzymes (acid phosphates, amylase pepsinogen and prostaglandins). $A$, $B$ and $C$ in the above statement is
The second maturation division of the mammalian ovum occurs
The function of amniotic cavity is
Phallic organs in cockroach are related to