CH. 3 Human body

Match it! Select the correct answer from the pull down...Good luck!

Outer layer of the skin

Which of the following is NOT a first line of defense in the body

Protein produced by some white blood cells to attack specific foreign materials

Disease causing agents

When the body can produce its own antibodies

Carries blood back to the heart

Which of the following are part of the specific response

Very narrow blood vessels that connect arteries and veins