Answer:
Hemoglobin transfers oxygen from the lung to the muscles, brain, and other organs, and also helps the body to convert carbohydrates and fat into energy.
hemoglobin helps the body convert carbohydrates and fat into energy
What is the function of nitrogen fixing bacteria​
Answer:
microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.
why are new pennies made with less copper than old pennies
Answer:
because it is cheaper to afford
Explanation:
