1. Which set of bones protect the lungs and the heart?
a. Skull
b. Ribs
c. Pelvic bones
d. Backbones
__2. Which is the command center of the body?
a. Blood
b. heart
c. brain
d. stomach
3. Why can fish live in water
1. They have mouth that can drink much waler.
II. They have fins that help them swim.
III. They can open their eyes under water.
IV. They have gills that help them breathe in waier.
and IV ​