Which type of cartilage covers and protects the ends of bones at freely movable joints?

Thy hyaline cartilage covers and protects the ends of bones at freely movable joints. The hyaline cartilage contains elements that are found commonly in areas such as the ear. It is made this way because it is very elastic allowing the joints it is covering to have more flexibility.

The correct answer would be b. carbon dioxide (6 co2) + water (6 h2o) > glucose (c6h12o6/ sugar) + oxygen gas (6 o2)