Write the function of each of the following:
Seminal vesicle.

How is polyspermy prevented in humans?

Hat is ovulation? What happens to the Graafian follicle after ovulation?

Spermatids possess haploid chromosome number. Explain.

Which organs together form the female reproductive system?

A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.

Draw and label the parts of the only head region of a human sperm.
OR
Draw a well-labelled diagram of a sperm.

Why are the human testes located outside the abdominal cavity? Name the pouch in which they are present.

Explain the events that follow up to fertilisation when the sperms come in contact with the ovum in the fallopian tube of a human female.

Name the stage of the human embryo that gets implanted in the uterus and draw its labeled diagram.