Answer:
The answer is,
"The glucose molecules from the food are broken down by the mitochondria in the cell to produce ATP which the cells use as energy".
Explanation:K-12
Law of crossing cutting relationships is the right answer
The answer you are looking for is chitin.
According to a page that I found with info on the subject,
"All arthropods have bodies divided into segments and covered with a hard EXOSKELETON. This tough casing is made of a protein called chitin, which is also found in human fingernails."
https://www.factmonster.com/dk/encyclopedia/nature/arthropods
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