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The circulatory system is an organ system that is composed of __________. Select one of the options below as your answer: a. cells, organs, and organisms b. cells, tissue, and organisms c. tissue, organs,
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The circulatory system is an organ system that is composed of __________. Select one of the options below as your answer:

a. cells, organs, and organisms
b. cells, tissue, and organisms
c. tissue, organs, and organisms
d. cells, tissue, and organs

User Martin Berger
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a. cells, organs, and organisms
User Netzpirat
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