Its called the articular cartilage where <span>white tissue covers the ends of bones where they come together. It makes </span><span>our joints makes it easier to move and allows the bones to glide over each other not causing a lot of friction. </span>
An acid can be defined as a proton donor.
Grasses and plants are producers, guanacos are herbivores and are primary consumers and pumas are predators and secondary consumers