The growth of tendril in pea plants is due to

Which of the following statements are true?
$(i)$ Sudden action in response to something in the environment is called reflex action.
$(ii)$ Sensory neurons carry signals from the spinal cord to muscles.
$(iii)$ Motor neurons carry signals from receptors to the spinal cord.
$(iv)$ The path through which signals are transmitted from a receptor to a muscle or a gland is called a reflex arc.

What are the major parts of the brain? Mention the functions of different parts.

What is the role of motor areas in the brain?

The opening of a tulip flower is an example of which type of movement?

$(a)$ If the cerebellum is not functioning properly,what are the activities of our body affected?
$(b)$ How do muscle cells move?