Answer:
Through body contacts
Explanation:
Like the HIV/AIDS are affected through one person to another by sexual intercourse
<span>Oxygen carried in a hemoglobin molecule is bound to an iron atom.
</span>The red blood cells contain a pigment called hemoglobin, each molecule of which binds four oxygen molecules.
This protein carries oxygen to the cells and carbon dioxide to the lungs.
It is the iron atom<span> that binds </span>oxygen<span> as the blood travels between the lungs and the tissues.</span>
Phylogenetic
Scientist use a phylogenetic tree to track the evolutionary history of a species.
Answer:
Mass is the amount of matter in a substance measured in kilograms
