The skeletal system is made of a. muscles and tendons b. bones and cartilage c. vitreous humor d. minerals and fat

The question asks us to identify the main components of the skeletal system.

Let's consider each of the options given. Option a: muscles and tendons - Muscles and tendons are related to the muscular system, not the skeletal system. Therefore, this option is incorrect. Option b: bones and cartilage - Bones provide the structural framework for the body, and cartilage provides flexibility, cushioning, and support. Both of these components are essential to the function of the skeletal system. This option is likely correct. Option c: vitreous humor - The vitreous humor is a gel-like substance found in the eye. It is related to the visual system, not the skeletal system. Therefore, this option is incorrect. Option d: minerals and fat - Though minerals and fat may be found in bones, these are not the main components of the skeletal system. Therefore, this option is incorrect.

Based on our analysis of the different options, the correct answer is (b. bones and cartilage).

The skeletal system is primarily made up of bones and cartilage, which work together to form the framework of the body and provide support and flexibility.