Question

LET'S CHECK

Multiple Choice: Read each question carefully. Choose the letter of the best answer.
1. Why is our nervous system important
a. it absorbs the nutrients needed by our body.
b. it removes waste from the body.
c. it controls the other body systems so that they work properly
d. it protects our body from harmful external elements.
2. Which of the following is a reflex movement?
I - blinking your eyes when something comes near your face
II - your knee when someone taps it
III - moving your hand away upon touching a sharp-object
IV - when you heard a sound of thunder
a. I and II
b. III and IV
c. I and IV
d. I,II,III, and IV
3. Why do you suddenly move your hand away even before realizing that you touched a hot object?
a. The muscles contract before the message reaches the brain.
b. The blood, travels faster because of the heat.
c. The message travels fast because of the heat.
d. Message to and from the brain travel fast through the nerves.

Answer 1

Answer:

question 1 ans is C

question 2 ans is all of the above ( I think so )

question 3 ans is A

Explanation:

hope it is helpful !!!