I believe the answer is C but I’m not completely sure
The unusual property that cytochromes have in common with hemoglobin or myoglobin is that all of them contain heme groups. Cytochromes are heme-containing electron transport enzymes which are essential for the oxidative metabolism necessary to generate adenosine triphosphateas well as for the oxidative degradation of drugs and endogenous substrates.
<span>All natural radiation is at a level low enough to be safe</span>
Our cells reproduce so that we may grow and regenerate, the process of cellular reproduction is also the basis for human reproduction. Cellular reproduction is a means of creating new life.
Activation energy - is the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.