Answer:
four oxygen molecules
Explanation:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
The cell would have 2 nuclei but the cytoplasm wouldn't be able to split.
Each time an organism is consumed, 90% of the energy is lost as heat. that leaves only 10% for the carnivore