Online Quizzes

Chapter 7: Preventing Diseases

	1.	Which is the smallest and simplest disease-causing organism?

		a.	virus
		b.	protozoa
		c.	bacteria
		d.	fungus

	2.	Which is NOT one of the body's natural barriers against disease?

		a.	skin
		b.	mucus
		c.	tears
		d.	fever

	3.	Which is NOT a common communicable disease?

		a.	influenza
		b.	mononucleosis
		c.	skin cancer
		d.	strep throat

	4.	Why do vaccines prevent you from getting communicable diseases?

		a.	They act like vitamins to keep your immune system strong.
		b.	They cause the body to produce antibodies.
		c.	They create natural barriers against the disease.
		d.	They increase the power of your body's general reactions to pathogens.

	5.	What is the longest period of time that people can be infected with HIV without showing any symptoms?

		a.	ten years or longer
		b.	five years
		c.	six months
		d.	three months

	6.	Which is NOT a way that HIV is transmitted?

		a.	from unprotected sexual contact
		b.	from sharing needles
		c.	from mother to unborn child
		d.	from contact with objects such as utensils

	7.	Which type of heart disease reduces blood flow to the brain and leads to disability or death?

		a.	arteriosclerosis
		b.	heart attack
		c.	high blood pressure
		d.	stroke

	8.	What is the second most common cause of death in the United States?

		a.	heart disease
		b.	cancer
		c.	HIV/AIDS
		d.	asthma

	9.	What percentage of all cancer deaths is caused by cigarette smoking?

		a.	90 percent
		b.	50 percent
		c.	30 percent
		d.	10 percent

	10.	Which noncommunicable disease is caused by air pollution?

		a.	cancer
		b.	allergy
		c.	asthma
		d.	diabetes