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    Biology The Unity Diversity
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    Exam 38: Respiration
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    What Is Hemoglobin
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What Is Hemoglobin

Question 63

Question 63

Multiple Choice

What is hemoglobin?  


A) A reliable source of oxygen
B) A protein that is colorless when deoxygenated
C) An iron-containing respiratory protein
D) A protein found in invertebrates such as crabs and octopus
E) A by-product of gas exchange

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