How does cellular respiration heal a bruise? it produces the oxygen used to heal cells. it produces the glucose used to heal cells. it produces the energy used to heal cells. it produces the mitochondria used to heal cells.

the answer is a) cell division.

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blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.

i got you i did it ya know what it is just needing to fill this in for a quick task!