<span>A. can start in many different places on a sequence at the same time. </span>
Radiation
The fire radiates heat and the human body absorbs said heat.
<span>The cell uses oxygen to break down glucose which releases energy. This energy is stored in the form of ATP.</span>
Enzymes actually catalyses the chemical reaction so as function as catalyst.
It is used to speed up the chemical reaction.
C.<span>Without enzymes, chemical reactions would not occur quickly enough to sustain life ,is the correct answer.</span>
