Immune System

Which would most likely prevent a cold virus from spreading in a classroom?

• tissue at a teacher's desk
• students wash hands regularly with soap 
• students shake hands regularly with each other
• students wipe desks with dry paper towels

Which system has the primary function of fighting disease?

• circulatory

• integumentary

• immune

• respiratory

Why might you become ill after visiting a friend who is sick with the flu?

• The room your friend was in was too warm.

• You ate the same kind of food your friend ate.

• You did not dress properly.

• The virus that causes the flu entered your body.

One of the most important functions of the skin is to

• carry food to body cells.

• protect the body.

• help the body move.

• let food into the body.

How do antibodies function to fight infection?

• They mark the cell for duplication

• They mark the cell for reproduction

• They mark the cell for death