<span>Oxygen is required and is used to break down nutrients , like glucose sugar they ( nutrients) are later broken down to generate ATP (energy) carbon dioxide & water . organisms can use cellular respiration including bacteria , animals, plants and fungi.
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The discoloration is often purple.
Blood shouldn’t be put out where there is open air and it shouldn’t be stored in an airtight container.
Hope this helps :)
A. Enzymatic. The three major types are humoral, hormonal, and neural stimuli
