3. Cartilage is (a) harder than bone. (b) softer than bone. (c) made by marrow.

Cartilage is actually softer than bone, providing flexibility and cushioning in various parts of the body like joints, ears, and noses. This resilient tissue can absorb shock, which prevents bones from grinding against each other during movement—pretty cool, right? Interestingly, cartilage plays a crucial role in the growth of long bones during childhood and adolescence. It's responsible for the growth plates, allowing our bones to elongate as we develop. So, you can thank cartilage for those extra inches you gained while growing up!