Systems can exist in three ways as open systems, closed systems, and isolated systems. The main difference between open and closed system is that in an open system, matter can be exchanged with the surrounding whereas, in a closed system, matter cannot be exchanged with the surrounding.
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C. Digesting a sandwich
Is your answer
Hope this helps
Answer:
2nd order.
Explanation:
gras, grasshopper, frog, snake, eagle
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