D. Chlorophyll a
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B. Because the environment can not supply for the food and caring of the animal species that is growing larger.
Answer:
Photosynthesis.
Explanation:
Photosynthesis is the process by which photosynthetic organisms such as plants and algae turn inorganic carbon compounds (usually carbon dioxide) into organic carbon compounds (usually carbohydrate sugars such as glucose). It causes carbon to move from one reservoir to another; examples are photosynthesis, respiration and combustion.
Answer:
the electrons well the outer shell to be specific
