A) several kinds of polysaccharides
B) layers of proteins and a polysaccharide called chitin
C) several kinds of proteins
D) single complex protein called arthropodin
Correct Answer: A
Solution :
Arthropods are the most successful group of animals, their success is due to unique chitinous cuticle. Exoskeieton is light weight, tough and composed of structural polysaccharide chitin.You need to login to perform this action.
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