BIOLOGY 11

The system that contains blood vessels and the heart is the…

• Circulatory system

• Digestive system

• Respiratory system

• Integumentary system

The small blood vessels where exchange of O2 and CO2 occurs are called…..

• Heart

• Veins

• Arteries

• Capillaries

Which part of blood helps it clot, when you get cut.

• Red blood cells

• White blood cells

• Plasma

• Platelets

Blood vessels that carry blood away from the heart are called…….

• Capillaries

• Arteries

• Heart

• Blood

The ……. Pumps blood throughout the body through a closed system of tube.

• Blood vessels

• Arteries

• Heart

• Veins

Made mostly of water and makes up about 55percent of the blood.

• White blood cells

• Red blood cells

• Platelets

• Plasma

When you breath, your lungs take in……… and remove …….

• Waste and air

• Air and oxygen

• Oxygen and carbon dioxide

• Carbon dioxide and waste

Which of the following does NOT belong to the group?

• Capillaries

• Lungs

• Veins

• Arteries

Blood moves from arteries to veins through tine blood vessels called …….

• Blood

• Oxygen

• Veins

• Capillaries

When you breath in, the lungs……… in order to …….. air pressure, so that air will flow in.

• Expand, decrease

• Shrink, decrease

• Shrink, increase

• Expand, increase