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

In which lobe of the cerebrum are the centers for temperature,smell,and touch located?

Name the system which facilitates communication between the central nervous system and the other parts of the body. Mention two types of nerves it consists of along with their organ of origin.

Which of the following statements are true?
$(i)$ Sudden action in response to something in the environment is called reflex action.
$(ii)$ Sensory neurons carry signals from spinal cord to muscles.
$(iii)$ Motor neurons carry signals from receptors to spinal cord.
$(iv)$ The path through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc.

Which is the most complex part of the brain?

Which part of the brain controls the involuntary action of the heartbeat?