Which is the most complex part of the brain?

Which mechanism controls the timing and amount of hormone released?

What is the reason for the growth of the pollen tube towards the ovule?

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

Electrical impulse travels in a neuron from :

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.