Contemporary Issues In Biology TCU exam 1 Questions and Answers

Contemporary Issues In Biology TCU exam 1 Questions and Answers What are the steps of the scientific method? - Answer- Observation Hypothesis tests of hypothesis Results What is a two group experimental design? - Answer- A control Group (given a placebo) An experimental group (given a drug) Peer review Process - Answer- Scientists in the same field give anonymous review either accepting or rejecting the publications Can a peer reviewer know the author? - Answer- NO! How many reviewed papers are accepted to Science Magazine? - Answer- only 8% What is pseudoscience? - Answer- A claim, belief or practice which is presented as scientific, but which does not follow the scientific method What are elements of something that is pseudoscience? - Answer- things that seem to be scientifically reputable by the use of scientific language and skewed facts What is an example of a pseudoscience? - Answer- Dietary supplements Why are dietary supplements dangerous? - Answer- FDA requires no scientific studies on safety; People use supplements without telling their doctors Why are dietary supplements a waste of money? - Answer- Because the claims made are not backed scientifically How much of biology do scientists understand as of right now - Answer- less than 50% Who is the father of biology? - Answer- Aristotle Where is sperm produced - Answer- the seminiferous tubules in the testes Where is sperm stored? - Answer- epididymis Where does sperm travel during sexual activity? - Answer- the Vas Deferens What are the three accessory glands of the male reproductive system - Answer- Seminal Vesicles Prostate gland Bulbourethral gland Who many sperm per ejaculate - Answer- 280 million How are male hormones regulated? - Answer- Through the raising of FSH and LH it works like a thermostat. Causes of large prostate? - Answer- Age Problems of enlarged prostate? - Answer- Constricts urethra Prevents bladder from emptying dilates bladder causes discomfort What are the 4 prostate cancer risk factors - Answer- Age