The growth of pollen tubes towards ovules 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 autonomic nervous systems are there?

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

Label the endocrine glands in the figure.

Which of the following hormones is $NOT$ secreted by the anterior pituitary gland?