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. (2 points)
One advantage of having an exoskeleton is that it provides protection from predators and environmental hazards. However, a major disadvantage is that it restricts growth and movement as the organism must molt and shed its exoskeleton to accommodate growth.
