Sexual Reproduction in Humans

What are the accessory sex organs in male?

Write a note on menarche.

Name the primary sex organs in human females.

When the egg cell gets fertilised by a sperm, then an event C occurs in the life of mature human female which lasts for the time period Y leading to the birth of a baby. If, however, the egg cell released by the ova does not get a sperm to fuse with, then the thick and soft inner lining of the uterus breaks down and comes out of the female's body in an event called D. The occurrence of event D is controlled by chemical substances E.

Name the chemical substances E.

X and Y are two human beings. The organ A in the reproductive system of X releases a mature gamete B once a month which goes into a tube-like structure C through a funnel-like opening. The organ D in the reproductive system of Y makes and releases gametes E which pass through a duct F and are introduced by an organ of Y, into the body of X.

Out of X and Y, which one is male?

The onset of the menstrual cycle at the time of puberty is called

Write a note on the structure of ovum.

Draw a well- labelled diagram of male reproductive system. Describe the functioning of the primary genital organs in humans?

What is ovulatory phase?

Which of these is not a pubic character in human females?

Explain the structure of sperm with diagram.