Human Body Review

What is the function of the digestive system?

• breaks down food into nutrients for cells and prepares to remove solid waste from the body

• removes toxins

• provides the body with oxygen which reacts with food to produce energy

• carry needed substances to cells and carry waste products away from cells

What is the function of the excretory system?

• breaks down food into nutrients for cells and prepares to remove solid waste from the body

• removes toxins

• provides the body with oxygen which reacts with food to produce energy

• carry needed substances to cells and carry waste products away from cells

What is the function of the respiratory system?

• breaks down food into nutrients for cells and prepares to remove solid waste from the body

• removes toxins

• provides the body with oxygen which reacts with food to produce energy

• carry needed substances to cells and carry waste products away from cells

What is the function of the circulatory system?

• breaks down food into nutrients for cells and prepares to remove solid waste from the body

• removes toxins

• provides the body with oxygen which reacts with food to produce energy

• carry needed substances to cells and carry waste products away from cells

Which is an example of physical digestion?

• absorption

• production of vitamin B

• acids breaking down food

• Saliva in mouth

Which is an example of chemical digestion?

• peristalsis in the intestines

• saliva in the mouth

• grinding of carbohydrates in the mouth

• production of vitamin B

What is the role of the kidneys?

• remove toxins

• absorb oxygen

• get rid of carbon dioxide

• remove liquid waste from body

What is a common characteristic that all living things have?

• cells

• breathe air

• walk upright

• use sunlight for growth

Why do you slow down and breathe heavier when you run?

• you are getting less oxygen to your cells

• you are exhaling carbon dioxide

• your lung cells are multiplying

• the respiratory stops functioning

What does the brain monitor to control the rate of breathing during normal activities?

• carbon dioxide levels in the blood

• carbon dioxide levels in the cells

• carbon dioxide levels in the lungs

• carbon dioxide levels in the air