The response of plants to stimuli is limited because $...$

$(a)$ Give the functions of cerebellum. (any two)
$(b)$ Name the components of central nervous system.

The movement of sunflower in accordance with the path of sun is due to

Which of the following statements are true about the brain?
$(i)$ The main thinking part of the brain is the hindbrain.
$(ii)$ Centres of hearing,smell,memory,sight,etc.,are located in the forebrain.
$(iii)$ Involuntary actions like salivation,vomiting,and blood pressure are controlled by the medulla in the hindbrain.
$(iv)$ The cerebellum does not control posture and balance of the body.

How many types of autonomous nervous system are seen?

Which mechanism controls the timing and amount of hormone released?