Washing your hands can help protect you from dangerous pathogens. (1 point)

• True
• False

True

Infectious diseases are caused by organisms or viruses that enter and multiply within the human body. (1 point)

• True
• False

True

Physical lines of defense include (1 point)

• skin, cielia, and mucous membranes.
• hair.
• nails.
• teeth.

skin, cilia, and mucous membranes.

When a doctor feels for lymph nodes, he is checking for (1 point)

• inflammation.
• shrinking
• pain.
• sensitivity

inflammation.

Your body can get antibodies from (1 point)

• immunizations.
• being exposed to the virus or antibody and having your immune system make it.
• none of the above.
• all of the above.

all of the above.

Dogs, ticks, and mosquitoes can spread disease. (1 point)

• True
• False