3 years ago

Fill in the blank: __________ is a substance in RBCs that carries oxygen and gives blood its red color.

2 answers:

7 0

Its hemoglobin iron red blood cells contain hemoglobin which is rich in iron. the iron is bound to the hemoglobin molecules.the iron atom is complexed by "haem" units is what gives blood its color. HOPE THIS HELPS

rodikova [14]3 years ago

5 0

Hemoglobin. Hope this helps!

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