What is bolting? How can it be induced artificially?

What will you do to prevent leaf fall and fruit drop in plants? Support your answer with reason.

Write the differences between endocrine and exocrine gland.

What are the hormones secreted by posterior lobe of the pituitary gland? Mention the tissues on which they exert their effect.

Which hormone requires iodine for its formation? What will happen if intake of iodine in our diet is low?