Energy cannot be destroyed
Answer: The respiratory system, the circulatory system, and the muscular system
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The answer would be Activational <span />
Microbes. Bacteria, for example, convert nitrogen and carbon dioxide from the air into usable components that plants and animals can use as essential building blocks. A loss of all microbes would be terrible news for living organisms that can't create or take in these essential nutrients on their own.
Hi unequal pupils would likely indicate a brain injury.
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