The United Nations predicts the world population will reach roughly ________ people by 2050.
A. 50 billion
B. 20 billion
C. 25 billion
D. 9 billion
Answer: D
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Blood-cell fragments that are necessary for the clotting of blood are called
A. platelets. B. lipo proteins. C. capillaries. D. macrophages.
Write the correct abbreviation for Hodgkin disease:
What will be an ideal response?
In a Physical Education class, children are there due to the following reasons:
A. they must attend B. other disciplines have overflow into Physical Education C. they volunteered to participate D. all the above
Anemia is a general term for a blood disorder in which
A. there is an excessive increase in white blood cells B. red blood cells do not transport enough oxygen C. there is excessive iron in the blood D. red blood cells transport too much oxygen