through examples like decomposition, spoiling of food, diseases etc. we cant see any of them but they are all taking place as we can see them in our day to day life. i think this is it. tell me if i was able to help you. sorry if it was not helpful.
what??????I don't know but I will help you
Answer:
The external skeleton of arthropods is a highly efficient system for small animals. The exoskeleton provides a large surface area for the attachment of muscles and, in addition to functioning in support and movement, also provides protection from the external environment.
Explanation:
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