The heart beat increases at the time of interview due to

The cause of Addison's disease is:

When primary sex organs do not develop,what causes the appearance of puberty?

Which gland is stimulated by nicotine?

Given below are two statements.
Statement $I$: Cortisol decreases blood glucose level.
Statement $II$: Cortisol is used in the treatment of allergy as it suppresses the synthesis of antibodies.
In light of the above statements,select the correct answer from the options given below.

Which one of the following is the hormone of the adrenal medulla?