Give differences between: (a) Involuntary action and reflex action. (b) Tropic movements and Nastic movements.

What is the difference between reflex action and walking?

What is phototropism? Describe an activity to demonstrate phototropism.

Give the role of following: (a) Medulla oblongata (b) Cerebellum.

What are phytohormones? Give examples of these hormones and at least one function.