. endoskeletons nor exoskeletons? What types of animals have both endoskeletons and exoskeletons? 2. What are different ways in which an exoskeleton might protect an animal? 3. Why are animals with exoskeletons. adults. Insects’ exoskeletons do not expand or change. Because of this, an insect cannot grow without shedding its exoskeleton. When an insect becomes too big for its exoskeleton, the exoskeleton. endoskeletons nor exoskeletons? What types of animals have both endoskeletons and exoskeletons? 2. What are different ways in which an exoskeleton might protect an animal? 3. Why are animals with exoskeletons