Glencoe Science Level Green

Chapter 13: Circulation and Immunity

Circulation

1
Where does the exchange of food, oxygen, and wastes occur?
A)capillaries
B)arteries
C)trees
D)lymph vessels
2
Where is blood under the greatest pressure?
A)in the arteries
B)in the veins
C)in the capillaries
D)in the lymph vessels
3
Which of these is a cause of cardiovascular disease?
A)smoking
B)asbestos exposure
C)jogging
D)ultraviolet radiation
4
Which of these systems collects and returns fluid to blood?
A)the lymphatic system
B)the respiratory system
C)the circulatory system
D)the endocrine system
5
The blood vessels that carry blood back to the heart are called _______.
A)veins
B)arteries
C)capillaries
D)pulmonaries
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