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andriy [413]
3 years ago
5

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

Biology
2 answers:
inna [77]3 years ago
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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<u />

<u>  </u>

<u>Sol-gel theory has been proposed to expalin this movements, The ectopalsm of amoeba is gelly-like , while the endiplams is less viscpus   and said to be sol. The interchange of the cytoplasmic fluis between the endo-and ecto plasm gives the SOL-GEL propulsion of the protopalms for the amoebic moveemnts .</u>

<u />

<u>The false feet(psuedopodium) drags the amoeba  along in the direction of the flow of the cytoplasm.</u>

Therefore option D is  the right option

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