Deficiency of the adrenal cortex activity leads to

Select the correct option on the basis of the following sentences regarding a gland's functions:
$(I)$ Hormones increase alertness.
$(II)$ Hormones increase the heart beat.
$(III)$ Stimulate the breakdown of glycogen.
$(IV)$ Stimulate the breakdown of lipids and proteins.

In several vertebrates,the rate of heartbeat and increase in blood pressure is caused by which hormone?

Which hormones are known as the emergency hormones?

In our bodies,which steroid regulates water and electrolytes?

Which of the following endocrine glands functions under direct nervous control?