$(a)$ Draw a diagram of the human brain.
$(b)$ Label the Cerebrum and Cerebellum on it.
$(c)$ What is the role of the Cerebellum?

State whether the following statement is true or false: Blood pressure,salivation,and vomiting are controlled by the cerebrum.

Plant roots grow towards water. What type of tropism is this?

$(a)$ Name the hormone which is injected to a diabetic patient.
$(b)$ Why should we use iodised salt in our diet?
$(c)$ If iodine is insufficient in one's diet,what might be the deficiency disease and its symptoms?

How does chemical coordination occur in plants? Explain with the help of three examples.

In a synapse,chemical signal is transmitted from