I know one is caring for them and not letting them think or being discriminated
Explanation:
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Genetics, diet, environmental factors, the way the body of the animal handles its surroundings and biological necessities such as oxygen nutrients etc.
Option two is the right answer
<u>Answer:</u>
The Answer is <em><u>Option D. </u></em>
<em>Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.</em>
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