Bisc 162 Exam 4 Questions And Answers(Rated A+)

Which of the following statements about the excretory system of annelids is false? A. As coelomic fluid passes through tubules, its composition is modified through reabsorption and secretion by tubule cells. B. Each segment has two metanephridia. C. Under pressure, blood is filtered across capillary walls into the coelom. D. Ammonia diffuses directly from tissues into the coelom. E. Pressure from the closed circulatory system forces coelomic fluid into the metanephridia. {Ans: E.}Given the many roles that kidneys play in homeostasis, which of the following would not be likely to result from kidney failure? A. High blood pressure B. Edema (buildup of fluid in tissues) C. Alkalosis (increase in blood pH) D. Uremic poisoning (buildup of urea) E. None of the above; all of the above would occur during kidney failure. {Ans: E.}Malpighian tubules are the osmoregulatory organ of A.vertebrates B. insects C. earthworms D. nematodes E. none of the above {Ans: B.}Which of the following defenses is most likely to be provided by complement proteins? Promotion of genetic recombination Lysing of invading cells Insertion of nitric oxide into microbes Deactivation of the inflammation response Production of interferons {Ans: b}MHC I proteins are found primarily on