3. Answer the following questions. (a) What is digestion? (b) Why do we require sense organs? (c) What role does the nervous system play in our body? (d) What are involuntary muscles? (e) What is the function of the heart?
Answers
Answer:
Explanation:
(a) it is process of digesting the food in your stomach to give energy
(b) to sense our surroundings
(c) gives immediate response from our surroundings and also receives and transfers information to the brain
(e) to pump blood all over the body
QUESTION
(a) What is digestion?
ANSWER
The Process of breaking down food into insoluble molecules is called Digestion.
QUESTION
(b) Why do we require sense organs?
ANSWER
We need sense organs because it helps us know what is happening around us.
QUESTION
(c) What role does the nervous system play in our body?
ANSWER
Your Nervous System helps you to transmit messages and control your body movements by using brain cells. It acts as a Command system.
QUESTION
(d) What are involuntary muscles?
ANSWER
Involuntary muscles are the muscles that are not under your conscious control. For example The muscle in your heart.
QUESTION
(e) What is the function of the heart?
ANSWER
Heart is a Pumping Organ, which helps you to pump and circulate blood all over your body.