Biology
__________ is essential for the formation of hemoglobin?
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Serum = plasma minus?
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The three elements needed for healthy growth of plants are __________?
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The biggest species of the cat family is___________?
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Normal temperature of human body is:
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Which one of the following wavelengths of light is most effective in photosynthesis?
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Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of
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The only living cells in the body without blood supply is___________?
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In a normal human body, the total number of red blood cells is ________?
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