(2) The oval body of these arachnids consists of the fused head and thorax and the abdomen.
(3) The first two pairs of appendages are small and are used for feeding.
(4) Adult ticks and mites have four pairs of walking legs, but the larvae have only three pairs.
(5) Breathing occurs through tracheal tubes.
(6)The ticks are mostly bloodsucking parasites (organisms that feed on others) that attach themselves to the outer body of mammals, such as dogs, deer, and humans. In addition to injecting poison into the host while sucking blood, ticks can transmit other disease-causing organisms resulting in Rocky Mountain spotted fever, Lyme disease, relapsing fever, typhus, and Texascattle fever.