Animal Habitats. Most animals inhabit the seas, with fewer in fresh water and even fewer on land. Animal Bodies. The bodies of most animals (all except sponges) are made up of cells organized into tissues. Each tissue is specialized to perform specific functions. In most animals, tissues are organized into even more specialized organs.
baller â(plural ballers) 1  A person employed to divide molten metal into separate balls before it is hammered out.
ball-and-socket joint a synovial joint in which the rounded or spheroidal surface of one bone (the âballâ) moves within a cup-shaped depression (the âsocketâ) on another bone, allowing greater freedom of movement than any other type of joint. See illustration. Called also polyaxial or spheroidal joint.inge joint a synovial joint that allows movement in only one plane, forward and backward. Examples are the elbow and the interphalangeal joints of the fingers. The jaw is primarily a hinge joint but it can also move somewhat from side to side.