Each hemoglobin molecule can carry how many oxygen molecules?
a. 4
b. 6
c. 8
d. 10
e. 12
ANSWER: a
Biology & Microbiology
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Which of the following represents a synthesis reaction?
A. A + B ? AB B. AB ? A + B C. AB + XY ? AY + XB D. AB + XY ? AY + XB
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In this diagram of the life cycle of a flowering plant, in which structure, A, B, C, or D, would a pollen tube grow?
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2.B
3.C
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The "thumb" of the panda is really a modified ________ bone, which evolved because it improved ______________.
Fill in the blank(s) with the appropriate word(s).
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