BIOL 1201 : Exam 4
Document Summary
Family tree of life (phylogeny / evolutionary tree) Size comparison of prokaryotes, eukaryotes, and viruses: eukaryotes (10-100 um) > prokaryotes (0. 2-10 um) > virus (0. 05-0. 2) Life cycle replicative cycle of a virus ssrna hiv. *ssrna influenza virus dsdna varicella zoster virus (chicken pox) 36,000 people die from the flu: working on a life time influenza vaccine-believes it will be out in about 5 years, average of approx. 1 billion cases of flu, around 3-5 million cases of severe. Worldwide illness, and 300,000 500,000 deaths annually. Causes of death: pneumonia (virally induced or materially induced) and from exacerbations of cardiopulmonary conditions and other chronic diseases, deaths of older adults account for more than 90% of deaths attributed to pneumonia and influenza. Cold and flu are similar because target cells are the same human to human. Flu hits all at once and all symptoms remain until virus is gone.
