Chitinous exoskeleton is a characteristics of
Answers
Answer:chitin is present in exoskeleton of anthropods
Explanation:
Answer:
The exoskeleton of an arthropod is their tough, hard outer shell. It is made up mostly of chitin, which is a very strong material related to cellulose. Unlike turtle or snail shells, it does not grow as the arthropod gets bigger. Instead, the animal has to molt, or shed its old skeleton after growing a new, larger one underneath it. Can you imagine if every time you had a growth spurt you had to step out of your old skin and grow a completely new one?
A cicada breaks out of its old exoskeleton as it grows
Molting cicada
Though chitin is a tough substance to begin with, many arthropods add calcium carbonate to their exoskeleton to make it even stronger. This is especially true for crustaceans, such as crabs and lobsters. Calcium carbonate is a very hard substance found in rocks like limestone and marble. This addition makes the animal far less vulnerable to a predator's bite.
Explanation: