ATP (adenosine triphosphate).
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The Oxygen-Carbon Dioxide Cycle. Plants use carbon dioxide in a process known as photosynthesis. During photosynthesis, plants give off oxygen as a waste product. ... Animals breathe in the oxygen made by plants and breathe out carbon dioxide as a waste product.
Answer:
Hereditary traits.
Explanation:
Since these two parrots (with two different parents), one with yellow feathers and the other one red, it would make sense that they inherited their traits from their parents.
Just as humans have different colors of hair. Parrots can have different chest colors. Both of these come from hereditary genes.