Within an ecological food chain, Consumers are categorized into consumers, and the tertiary consumers. Primary consumers are herbivores, feeding on plants. Secondary consumers, on the other hand, are carnivores, and prey on other animals. Omnivores, who feed on both
Field Overview. To work as a radiologist, you'll first need to become a licensed physician and specialize in medical imaging. You'll examine images from ultrasounds, x-rays, magnetic resonance imaging (MRI), and other radiographic devices to diagnose your patients' illnesses.o become a radiologist, you must go to medical school for four years after attending undergraduate school. As a medical student, you'll spend the first two years completing basic medical and science coursework in laboratories and classrooms. Courses usually include: 1  Pathology. 2  Anatomy. 3  Molecular biology. 4  Immunology.
Education. The first step in becoming a radiologist is to obtain a bachelorâs degree. Pre-medicine students may major in any subject but need to meet prerequisites in math, biology, organic and inorganic chemistry, physics and the humanities.verview. By Michael Sapko, M.D. Radiologists are physicians who use cutting-edge imaging technology to examine organs and tissues inside the body in gentle, noninvasive ways. Their expertise in physics, anatomy and the disease process allow them to diagnose injuries and illnesses so treatment can begin.