Transportation in animals and plants

Which is the blood pumping organ of our body?

• stomach
• kidney
• liver
• heart

What is blood made up of?

• Blood is made up of water and sugar
• Blood is made up of bones and muscles
• Blood is made up of air and sunlight
• Blood is made up of plasma, red blood cells, white blood cells, and platelets.

What are the two types of blood vessels

• Arteries and veins
• Lungs and heart
• Red blood cells and white blood cells
• Capillaries and lymphatic vessels

Which is the only artery that carries deoxygenated blood?

• Coronary artery
• Carotid artery
• Pulmonary artery
• Aorta

Which is the largest artery in our body?

• Femoral artery
• Radial artery
• Pulmonary artery
• Aorta

Which are blood cells in our body?

• Red blood cells, white blood cells, and platelets
• Skin cells, muscle cells, and bone cells
• Blue blood cells, yellow blood cells, and green blood cells
• Heart cells, lung cells, and liver cells

Veins have ____ elastic walls.

Which blood vessel does not have valves

• Veins
• Capillaries
• Arteries

Blood flows under ________ pressure in veins.

• high
• low

Why is our blood red?