What is the Difference Between Exoskeleton and Endoskeleton?

The main difference between an exoskeleton and an endoskeleton lies in their location and composition. Here are the key differences:

• Exoskeleton:
• An exoskeleton is an external skeleton that provides protection and support to the body of an organism.
• It is typically found in invertebrates such as insects, crustaceans, and arachnids.
• Exoskeletons are made of materials like chitin, which is a strong, shielding polysaccharide.
• They offer protection, support, and enable movement, but they are less flexible compared to endoskeletons.
• Endoskeleton:
• An endoskeleton is an internal skeleton that provides support and protection to the body's organs.
• It is mainly found in vertebrates, including mammals, birds, fishes, amphibians, and reptiles.
• Endoskeletons are composed of bones, connective tissues like cartilage, ligaments, and tendons.
• They provide support, protection, and enable movement, with more flexibility compared to exoskeletons.

In summary, exoskeletons are external structures that protect and support the body, while endoskeletons are internal structures that provide support, protection, and anchorage for muscles.

Comparative Table: Exoskeleton vs Endoskeleton

Here is a table comparing the differences between an endoskeleton and an exoskeleton:

Endoskeletons are found in vertebrates and are made up of bones and connective tissues, providing structural support and protection for internal organs. Exoskeletons, on the other hand, are found in arthropods and are made up of calcified shells, scales, and cuticles. Exoskeletons provide protection against predation, desiccation, and waterlogging, but they limit the size of arthropods due to their rigid nature.