They can be used to produce vaccines.
They can be used to determine the response of tissue to drugs.
They can be used to produce hormones.
Your answers would be Hormones and Bloodstream
hope this helps.
Answer:
Cellular respiration takes place in all types of cells, of all organisms.
It occurs in <u>autotrophs</u> (plants) and <u>heterotrophs</u> (animals).
<em>Cellular respiration begins in the cytoplasm of cells. It is completed in mitochondria.</em>
The answer is birth defect