Differentiate between the following pairs on the basis of what is mentioned within brackets:

Red Cross and WHO (one activity)

Differentiate between the following pairs on the basis of what is mentioned within brackets:

LUBB and DUP (names of the valves whose closure produce the sound)

Differentiate between the following pairs on the basis of what is mentioned within brackets:

Sperm duct and fallopian tube (function)

Given below is the outline of the human body showing the important glands:

(i) Name the glands marked 1 to 4.

(ii) Name the hormone secreted by part 2. Give one important function of this hormone.

(iii) Name the endocrine part of the part numbered 3.

(iv) Why is the part labelled 1 called the master gland? Which part of the forebrain controls the gland labelled 1?

(v) Name the gland that secretes the 'emergency hormone'.