6. Which is the command center of the body?
a. blood
b. heart
C. brain
d. stomach
7. It allows you to bend your knees.
a. muscles
b. joints
c. femur
d. tendons
8. Which of the following is not a function of the kidneys?
a. Regulates blood pressure
c. It balances the body
b. Excretes wastes in the blood d. It serves as framework of the body
9. It is about the size of your fist and located in the middle of the chest cavity.
a. lungs
b. liver
c. heart
d. kidneys
10. The
support each other to allow distribution of nutrients and oxygen to all parts
and the removal of carbon dioxide as a waste product in the body.
a. Heart and Brain
b. Heart and Lungs
c. Lungs and Kidneys
d. Brain and Lungs​