Compare your observations of micrographs obtained from the optical microscope, the scanning electron microscope, and the transmission electron microscope

optical microscope uses visible light and a lense to generate magnification

scanning electron microscope prodces image of a sample scanning with a focused beam of electron

transmission electron microscope in which beam of light of electrins is transmitted through a specimen to form an image

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

answer; polycythemia is the correct answer;