AND 19 ARE BASED ON THE FOLLOWING PASSAGE

Questions 18 and 19 are based on the following passage.chemically and then record responses. (3) Prelimi-nary results suggest that the microprobe telemetrysystems can be permanently implanted and replace(1) There are two types of diabetes, insulin-depend-ent and non-insulin-dependent. (2) Between 90 anddamaged or missing nerves.(4) The tissue-compatible microprobes rep-95 percent of the estimated 13 to 14 million peopleresent an advance over the typically aluminum wirein the United States with diabetes have non-insulin-dependent, or Type II, diabetes. (3) Because thiselectrodes used in studies of the cortex and otherform of diabetes usually begins in adults over the agebrain structures. (5) Previously, researchers datawas accumulated using traditional electrodes, butof 40 and is most common after the age of 55, it usedto be called adult-onset diabetes. (4) ________ itsthere is a question of how much damage they causeto the nervous system. (6) Microprobes, since theysymptoms often develop gradually and are hard toare slightly thinner than a human hair, cause mini-identify at first, ________, nearly half of all peoplemal damage and disruption of neurons whenwith diabetes do not know they have it. (5)inserted into the brain because of their diminutive________, someone who has developed Type II dia-betes may more feel tired or ill without knowingwidth.why. (6) This can be particularly dangerous because(7) In addition to recording nervous systemimpulses, the microprobes have minuscule chan-untreated diabetes can cause damage to the heart,blood vessels, eyes, kidneys, and nerves. (7) Whilenels that open the way for delivery of drugs, cellulargrowth factors, neurotransmitters, and other neu-the causes, short-term effects, and treatments of theroactive compounds to a single neuron or to groupstwo types of diabetes differ, both types can cause theof neurons. (8) The probes usually have up to foursame long-term health problems.channels, each with its own recording/stimulating18. Which of the following parts of the paragraphelectrode.contains an incomplete or illogical comparison?a.Part 7b.Part 5c. Part 3d.Part 220. Which of the following changes is needed in thefrom which the call to the Command Center wasplaced or the silent alarm used. (8) The bus opera-passage?tor will wait there until the police arrive, will allowa.Part 8: Change itsto it’s.passengers off the bus at this point, and no passen-b.Part 6: Change theirto its.gers are allowed on until the situation is resolved.c. Part 6: Change thanto then.d.Part 5: Change researchersto researchers’.23. Which of the following numbered parts containsa sentence fragment?21. Which of the following parts uses an adverbincorrectly?a.Part 4b.Part 7a.Part 2b.Part 8d.Part 6c. Part 6d.Part 424. Which of the following is the best revision of thesentence numbered Part 8 in the passage?22. Which of the following numbered parts shoulda.Bus operators will wait there until the policebe revised to reduce unnecessary repetition?arrive, will allow passengers off the bus at thisa.Part 5point, and no passengers will be allowed onb.Part 6until the situation is resolved.c. Part 2b.Bus operators will wait there until the policed.Part 8point, and, until the situation is resolved, no