State the function of: $(i)$ gustatory receptors,and $(ii)$ olfactory receptors.

How many types of autonomic nervous systems are there?

Answer the following:
$(i)$ Name the endocrine gland associated with the brain.
$(ii)$ Which gland secretes digestive enzymes as well as hormones?
$(iii)$ Name the endocrine gland associated with the kidneys.
$(iv)$ Which endocrine gland is present in males but not in females?
$(v)$ Which hormone is responsible for changes in females during puberty?
$(vi)$ Iodine is necessary for the synthesis of which hormone?

Which of the following statements is correct about receptors?

State in brief how the communication between the central nervous system and the other parts of the body is facilitated.

Which of the following endocrine glands is unpaired?