Answer:
The muscular system and the skeletal system work together to help your body move properly. Without bones, your body would not even be movable. Muscles are obviously very important as they give you the ability to walk, talk, and move. Your body would just be fat, and tissue without bones or muscles. Muscles are also attached to bones, so without bones there is no muscle.
D is the best option, that's the part that absorbes food and water
The best way I've found, according to Ask A Biologist . com, was to wash your hands regularly.
Money, people, food, and shelter
False... there most likely to go with a class with other students who have disabilites