How many heme units are present in a molecule of hemoglobin?
A) 1
B) 2
C) 3
D) 4
D
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In the diagram below, more oxygen is used up than is produced at
A) A.
B) B.
C) C.
If you typically consume large amounts of processed foods, and certain wines, which category of chemical hazard is introduced into your system?
a. mutagen, because of the nitrites b. carcinogen, because of the nitrites c. teratogen, because of the nitrites d. mutagen, because of the phosphoric acid e. carcinogen, because of the high fat content
Explain why winds are stronger on one side of a tornado.
What will be an ideal response?
Geopolitics
A) was first discussed in the middle of the twentieth century. B) focuses on the economic cooperation between countries. C) includes ideas that advocated territorial expansion of countries. D) is the study of political geography.