Science Chapter 3

1.

1 point

Which of the following will the body make in greater numbers in response to infection?

Red blood cells

White blood cells

Platelets

2.

1 point

What organ in the body supplies oxygen to be picked up by the blood then carried to every cell in the body?

Liver

Lungs

Heart

3.

1 point

Each side of your stomach contains an atrium and a ventricle.

True

False

4.

1 point

The transportation system of the body is the...

digestive system

respiratory system

circulatory system

5.

1 point

Mucus helps prevent dust and dirt from entering your lungs.

True

False

6.

1 point

Which organs send chemicals to the small intestine to help digest food?

heart and lungs

Pancreas and liver

stomach and esophagus

7.

1 point

Which of these systems does not carry wastes out of the body?

Digestive System

Urinary System

Circulatory System

8.

1 point

When does digestion begin?

When the food is in the stomach

When the teeth grind the food

When the food is in the small intestine

9.

1 point

What is the role of the villi in the small intestine?

No one knows why the villi are in the small intestine.

They move the food through the small intestine.

They provide more surface area to absorb food.

10.

1 point

How does food move through the esophagus?

Your tongue pushes food down the esophagus.

Food falls down the esophagus when it leaves your mouth.

Rings of muscles squeeze food down the esophagus.

11.

1 point

Which system in the human body is involved in removing wastes from the body?

Urinary System

Respiratory system

Binary system

12.

1 point

Around the wall of each air sac in the lungs is a web of ...

capillaries

veins

valves

13.

1 point

Which type of blood vessel takes blood from cells back to the heart?

vein

capillary

artery

valve

14.

1 point

Which organ in the body stores a mix of wastes and water until the mix of wastes and water is ready to leave the body?

Gall bladder

Urinary bladder

liver

15.

1 point

Arteries have valves that act like doors to keep blood flowing in one direction.

True

False

16.

1 point

What part of your blood helps protect you from disease?

red blood cells

platelets

white blood cells

17.

1 point

Plasma makes up the largest part of your blood.

True

False

18.

1 point

The common cold is a disease of the circulatory system.

True

False

19.

1 point

When a blood vessel is cut, platelets in the blood help stop bleeding.

True

False

20.

1 point

The tasks of the kidneys is to clean the blood, regulate the level of salt in the blood, and control the level of water in the blood.

True

False