<span>They consume food and they have much higher metabolism. That means that more waste products are produced. Plants can use much of the waste produced and it is in fact raw material. Animals don't normally produce their own chemicals from scratch like plants normally do so they can't just recycle the waste. They need to remove it. About the only waste plants need to get rid of is excess oxygen produced during the day. That is actually three reasons but recycling is related to plants not consuming but making their own chemicals from scratch. In a way it pretty much comes down to one main reason.</span>
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Answer:
A detailed interconnecting diagram that reveals the overall food relationships between organisms in a distinct environment
Explanation:
Answer:
The central nervous system contains the brain, which is the center of the nervous system, and the spinal cord, which coordinates simple reflexes.
Plant and animal respiration
