Question

The exoskeleton of arthropoda is made up from whick material

Answer 1

Arthropods are covered with a tough, resilient integument or exoskeleton of chitin. ... Typically the mineral crystals, mainly calcium carbonate, are deposited among the chitin and protein molecules in a process called biomineralization.

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Answer 2

PThe exoskeleton of arthropoda is made up from which material

Answer=>  the exoskeleton of arthropods is made up of CHITIN

CHITIN IT IS A HARD SUBSTANCE