Bio 322 - Study guides, Class notes & Summaries

Which if the following would result in non-pathological hormonal hyperplasia? A. A body builder who takes anabolic steroids to increase muscle mass. B. The thickening of the endometrium after fertilization and implantation C. A change in the cell size and shape of the cervix due to human papillomavirus (HPV) D. The reversible changing of normal columnar ciliated epithelium of the bronchial lining by stratified squamous epithelium. - Answer B. Elissa is a 16 year old high school studen...

Which of the following is not a benefit of Linnaeus's classification system? a. It provides biologists with a common set of names for different organisms. b. It provides names for species according to an ordered scheme. c. It is hierarchal. d. It is well suited for describing patterns of relatedness among different taxa. e. It makes use of colloquial (common) species names. e. It makes use of colloquial (common) species names. Which of the following is an accepted rule of species nomenclature?...

In this example, describe the relationship between the abundance of birds and horseshoe crab eggs: A. A decline in crab eggs causes a decline in the number of birds. B. A decline in the number of birds causes a decline in the number of crab eggs. C. Causation between birds and crab eggs cannot be determined from these data. D. Either A or B is correct. C. Causation between birds and crab eggs cannot be determined from these data. Based on this graph, which of the below are potential solutions t...

Demographic stochasticity is? Random variability in survival and/or reproduction among individuals within a population Environmental stochasticity is? Variation in birth & death rates in response to weather, disease, competition, predation, or other factors external to the population. What does stochastic mean? randomly determined; having a random probability distribution or pattern that may be analyzed statistically but may not be predicted precisely. The Allee effect is? The positive correl...

Which part of a nephron is lined by simple cuboidal epithelial cells with microvilli? Proximal convoluted tubule glomerulus distal convoluted tubule Loop of Henle Proximal convoluted tubule There are 2 ways to increase cardiac output. What are they? Increased heart rate and stroke volume increase cardiac output. Increased heart rate and decreased afterload increase cardiac output. Increased contractility and increased afterload increase cardiac output. Increased stroke volume and increased EDV...

Tuberculosis (TB) - Answer Infectious lung disease - used to be called consumption Tuberculosis (TB) causes - Answer Mycobacterium tuberculosis -> incubation period 2-8 weeks Decreased immune system -> high rate of co-infection with HIV Crowded living quarters; poverty; homelessness; substance abuse; decreased access to medical care/screening Tuberculosis (TB) signs and symptoms (active) - Answer Asymptomatic during early stages Cough that produces purulent sputum, dev...

What is the osmolarity of a solution of 140 mM NaCl? 280 mOsm/L 140 mOsm/L 320 mOsm/L 0.0140 Osm/L 280 mOsm/L How much filtrate is produced in an hour in a typical person? 125 ml/min No idea. 7.5 L 12.5 L 7.5 L A transfusion of serum would differ from a transfusion of saline in that The number of red blood cells in the blood would decrease less with serum compared to saline. The hematocrit would increase after serum transfusion because formed elements are a part of serum but are not include...

What is true about atrial, aortic, and ventricular pressures? A. Aortic pressure is always greater then ventricular pressure which is always greater then atrial pressure. B. Atrial pressure is always greater then ventricular pressure which is always greater then aortic pressure. C. Ventricular pressure is greater than aortic pressure when the aortic semilunar valve is open. D. Aortic pressure is greater than ventricular pressure when the aortic semilunar valve is open. C. Ventricular pressure is...

GERD - Answer can be caused by hiatial hernia, the LES is open, heartburn>2x weekly primarily @ night, can lead to barretts esophagus and metaplasia, treat with antacids and ppi! oh my gerd my heart burns more tonight than at the meet for barret last week peptic ulcer disease - Answer mcc i or nsaids, if duodenal (low pain when eating, more pain 1-2 hours later) if gastric (pain during eating). s/s n./v and melena (black tarry feces) and coffee ground emesis. the pep band at pylori s...