A student builds a model of the heart and brain, shown in the student will label the trucks with what they are carrying.
trucks, 1 and 2, trave
rgans
The
Which set of labels BEST Completes the model?
A
Truck 1 carries oxygen and Truck2 carries carbon dioxide.
B)
Truck 1 carries carbon dioxide and Truck2 carries oxygen.
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.