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Which of these physical structures in animals is similar to this structure in plants?


Well done, class. You all have correctly pointed out that the exoskeleton provides support and protection for various organisms such as insects and crustaceans. Explanation: As we have learned in previous lessons, the exoskeleton is a hard, external structure made of chitin that encases the entire body of many arthropods. This provides mechanical support for their muscles, as well as protection from predators and environmental factors. Similarly, terrestrial and freshwater crustaceans have exoskeletons that not only protect them, but also serve as a barrier to water loss. In summary, the exoskeleton is a critical feature for many organisms' survival and serves several important functions.