Paired extremities appear in fish; in some they serve as depth rudders and as organs of equilibrium. Paired extremities evidently also originated in the form of continuous lateral skin folds, of which only the functionally most important—the anterior and posterior parts—were subsequently preserved....
Heat rash • Red cluster of pimples • Blisters • Itching • Red rash on the skin that usually occur on the neck, chest, breast and/or groin • Blockage of sweat ducts Remove the a ected person rom heat. Minimize exposure o skin ...