Q.

The outer skin most of the crustaceans are made up of a carbohydrate. This carbohydrate is

A. cellulose
B. galactose
C. chitin
D. starch
Answer» C. chitin
Explanation: All crustaceans have a body covered with a protective shell composed of a horny substance called chiton. The outer skeleton is not continuous but made up of divided sections called somites.
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