Answer to Question #189456 in Evolution for Tobias Amukwiita

Question

2. As you have learned about arthropod and mollusc, how does the exoskeleton differ in both.

Answer 1

Unlike mollusk shells, the exoskeleton of arthropods does not grow along with the rest of the animal.

The mollusk exoskeleton, or shell, also contains high levels of calcium carbonate minerals, making it more rigid compared to that of the arthropods.