Specialized mouthparts are a trait that distinguishes insects from all other arthropods.
<h3>Do exoskeletons exclusively exist in arthropods?</h3>
Animals without a spine, hard exoskeletons, and joined limbs are called arthropods. Decapods are ten-legged creatures (or five pairs of legs). To protect their internal organs, many insects and other arthropods have an exoskeleton, or hard outer shell. Any animal lacking a backbone is an invertebrate.
<h3>What is exclusive to arthropods?</h3>
All arthropods have specialised appendages, a bilateral symmetry, jointed appendages, segmented bodies, and an exoskeleton. By contrasting the number of body regions, legs, and antennae in the various arthropod classes, we can distinguish between them.
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