Which factor promotes oxygen release from hemoglobin at the tissue?

a. low blood pressure
b. low oxygen gradient
c. low temperature
d. low carbon dioxide concentration
e. low plasma pH


ANSWER: e

Biology & Microbiology

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The action of two hormones working together to accomplish the same result is called:

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Which of the following statements about DNA is (are) true?

A) DNA contains thymine but not uracil. B) DNA molecules contain deoxyribose. C) In a double-stranded DNA molecule, adenine on one strand will be connected to thymine on the complementary strand by two hydrogen bonds. D) All of the above statements are true.

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If three molecules of a fatty acid that has the formula C16H22O2 are joined to a molecule of glycerol (C3H8O3), then the resulting molecule would have the formula:

a. C48H96O6 b. C48H98O8 c. C51H68O6 d. C51H106O8 e. C51H104O9

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Segmentation is the subdivision of the body into segments or metameres. True segmentation is found in which of the following phyla?

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Biology & Microbiology