[Solved] Joshua, a two-year-old, has been diagnosed with ________, a blood disorder that limits the body's oxygen supply and can cause joint swelling and heart and kidney failure. This genetic disorder can be treated through penicillin, pain medication, antibiotics, blood transfusions, and hydroxyurea. A) spina bifida B) Tay-Sachs disease C) sickle-cell anemia D) Huntington's disease Micrographs: Photographic or digital images taken through a microscope to magnify objects that are too small to be seen by the naked eye. Cell Theory: Theory that all organisms consist of one or more cells, which are the basic unit of life; all cells arise by division of preexisting cells; and all cells pass hereditary material to offspring. Multicellular Organism: An organism composed of multiple cells that are specialized to perform distinct functions, contributing to the overall functionality and survival of the organism. Glucagon: Pancreatic hormone that encourages glycogen breakdown; increases blood glucose level.