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Biology, 26.12.2019 20:31 brandyrushing3

Which of the following is a portal system? multiple choice heart → artery → arteriole → capillary bed → arteriole → capillary bed → venule → vein → heart heart → artery → arteriole → capillary bed → venule → vein → vein → heart heart → artery → vein → heart

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Which of the following is a portal system? multiple choice heart → artery → arteriole → capillary b...
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