Skeleton

The video tutorial explains the concept of skeletons, highlighting their role in providing protection and support to living organisms. It distinguishes between exoskeletons, found in arthropods, and endoskeletons, found in mammals, birds, reptiles, and fish. Exoskeletons are external structures made of hard plates or shells, while endoskeletons are internal and composed of bones. The tutorial emphasizes the importance of the skeletal system in supporting the body's skin, muscles, tissues, and organs.

Describe the composition of an endoskeleton.

How does the skeletal system support other body structures?