What makes the matrix of bones hard in the human body?

Step-by-step solution

The matrix of bones in the human body is hard due to the presence of calcium salts. This makes bones strong enough to support the weight of the body and protect delicate organs. Cartilages in the Skeletal system are specialised connective tissues that have a slightly pliable matrix due to chondroitin salts. This makes them ideal for joints where bones need to move smoothly against each other.The Skeletal system is grouped into two main divisions - the axial skeleton which includes the bones that make up the central