1 The three main parts of the brain are the:
a. Spinal column ribs, and skull
b. Cerebrum, medulla, and cerebellum
c. Medulla, nerve cells and spinal column d. Spine, brain, and skull
2. What organ is not a part of the digestive system?
a. Lung
b. Stomach
c Small intestine
d Large intestine
3. What is the largest organ in the body?
a.Brain
b.Stomach
c. Heart
d. Skin
4. What system is responsible for breaking down food into energy?
a. Urinary system
b. Digestive system
c. Skeletal system
d. Circulatory system
5. What is skeletal system?
a. A group of bones that supports the body
b. The nearest galaxy, shaped like the human body
c. A collection of collapsed mine tunnels d. Public infrastructure referred to as "bare bones".

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