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Health, 21.11.2019 19:31 astultz309459

Astudent builds a model of the heart and brain, shown in the diagram. two trucks, 1 and 2, travel between the organs. the student will label the trucks with what they are carrying. which set of labels best completes the model?

a) truck 1 carries oxygen and truck 2 carries carbon dioxide.
b) truck 1 carries carbon dioxide and truck 2 carries oxygen.
c) truck 1 carries red blood cells and truck 2 carries white blood cells.
d) truck 1 carries white blood cells and truck 2 carries red blood cells.

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