Which of the following is not an involuntary action?

Dramatic changes of body features associated with puberty are mainly because of the secretion of:

Which of the following statements about the transmission of a nerve impulse is incorrect?

Match the terms of Column $(A)$ with those of Column $(B)$.

Column $(A)$	Column $(B)$
$(a)$ Olfactory receptors	$(i)$ Tongue
$(b)$ Thermoreceptors (temperature receptors)	$(ii)$ Eye
$(c)$ Gustatoreceptors	$(iii)$ Nose
$(d)$ Photoreceptors	$(iv)$ Skin

The spinal cord originates from:

Answer the following:
$(a)$ Name the endocrine gland associated with the brain.
$(b)$ Which gland secretes digestive enzymes as well as hormones?
$(c)$ Name the endocrine gland associated with the kidneys.
$(d)$ Which endocrine gland is present in males but not in females?