Exoskeletons provide advantages such as protection against predators, support for body structure, and a reduced water loss, making them suitable for terrestrial environments; however, they can limit growth and mobility because they require molting, which leaves the organism vulnerable during the process. In contrast, having a backbone allows for greater flexibility and growth potential but may offer less protection against environmental threats.
Snails and beetles have exoskeletons. Hypothesize the advantages and disadvantages of having an exoskeleton rather than a backbone. Explain your answer in one or two sentences./
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