Pimples and acne are formed due to the increased activity of:

A) Adrenal glands

B) Sebaceous glands

C) Thyroid gland

D) Sweat glands

Which of the following hormone prepares our body for action in emergency situations?

A doctor advised a person to take injection of insulin because:

When a human female reaches a certain age, then vaginal bleeding occurs for a few days after rehular intervals of time:

(a) what is this process known as (i) in scientific terms, and (ii) in everyday language?

(b) What is the human female said to have attained at this stage?

(c) What does the onset of this process in human female signify?

(d) At what particular event in the life of a human female this process stops temporarily but starts again?

(e) What name is given to the event when this process stops permanently?

A woman is in her reproductive phase of life. Even when the sperms are available at the time of release of a mature ovum by her ovary, fertilization does not take place. Due to this, the woman is unable to bear a baby.

(a) What is the most likely defect in the reproductive system of this woman?

(b) Name the technique by which this woman can also have a baby?