The Heart and Blood

How many chambers does a fish's heart have?

• 1

• 2

• 3

• 4

How many chambers does a human heart have?

• 1

• 2

• 3

• 4

How many chambers does a reptile heart have?

• 1

• 2

• 3

• 4

Where does the blood pick up oxygen from?

• The heart

• The lungs

• The mouth

• The stomach

What part of the blood carries oxygen to the body?

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

What part of the blood carries carbon dioxide out of the body?

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

What part of the blood helps with clotting to stop bleeding?

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

What is the main function of white blood cells?

• To carry oxygen

• To help with clotting

• To fight infection

• To carry carbon dioxide out of the body

What is the main benefit of having a 4-chambered heart rather than a 3-chambered heart?

• It keeps you warmer because there is more blood.

• It is not beneficial as there are unused chambers.

• It lets the heart beat slower since it has less work to do.

• The blood with oxygen doesn't mix with the blood without oxygen.

Insects have what kind of circulatory system?

• Open

• Closed

• Squishy

• Semi-open