In 1-2 sentences, Snails and beetles have exoskeletons. Hypothesize the advantages and disadvantages of having an exoskeleton rather than a backbone.

Advantages of having an exoskeleton can include protection against predators and the ability to support the weight of the body, while disadvantages can include decreased flexibility and mobility compared to animals with backbones.

Having an exoskeleton, such as in snails and beetles, can provide advantages like protection against predators and physical support, but it may also limit mobility and growth potential due to the rigid outer covering.