46 - The University of the State of New York REGENTS HIGH...

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The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION LIVING ENVIRONMENT Thursday, August 16, 2001 — 12:30 to 3:30 p.m., only Student Name _____________________________________________________________ School Name ______________________________________________________________ Print your name and the name of your school on the lines above. Then turn to the last page of this booklet, which is the answer sheet for Part A. Fold the last page along the perforations and, slowly and carefully, tear off the answer sheet. Then fill in the heading of your answer sheet. This examination has three parts with a total of 71 questions. You must answer all questions in this examination. Write your answers to the Part A multiple-choice questions on the separate answer sheet. Write your answers for the questions in Parts B and C directly in this examination booklet. All answers should be written in pen, except for graphs and drawings which should be done in pencil. You may use scrap paper to work out the answers to the questions, but be sure to record all your answers on the answer sheet and in this examination booklet. When you have completed the examination, you must sign the statement printed on the Part A answer sheet, indicating that you had no unlawful knowl- edge of the questions or answers prior to the examination and that you have nei- ther given nor received assistance in answering any of the questions during the examination. Your answer sheet cannot be accepted if you fail to sign this decla- ration. DO NOT OPEN THIS EXAMINATION BOOKLET UNTIL THE SIGNAL IS GIVEN.
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1 Which statement describes the best procedure to determine if a vaccine for a disease in a cer- tain bird species is effective? (1) Vaccinate 100 birds and expose all 100 to the disease. (2) Vaccinate 100 birds and expose only 50 of them to the disease. (3) Vaccinate 50 birds, do not vaccinate 50 other birds, and expose all 100 to the disease. (4) Vaccinate 50 birds, do not vaccinate 50 other birds, and expose only the vaccinated birds to the disease. 2 Scientists have cloned sheep but have not yet cloned a human. The best explanation for this situation is that (1) the technology to clone humans has not been explored (2) human reproduction is very different from that of other mammals (3) there are many ethical problems involved in cloning humans (4) cloning humans would take too long 3 In an ecosystem, what happens to the atoms of certain chemical elements such as carbon, oxy- gen, and nitrogen? (1) They move into and out of living systems. (2) They are never found in living systems. (3) They move out of living systems and never return. (4) They move into living systems and remain there. 4 The main function of the human digestive sys- tem is to (1) rid the body of cellular waste materials (2) process organic molecules so they can enter cells (3) break down glucose in order to release energy (4) change amino acids into proteins and carbo- hydrates 5 The normal sodium level in human blood is 135 mEq/L. If a blood test taken immediately after a meal reveals a sodium level of 150 mEq/L, what will most likely result?
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This note was uploaded on 11/05/2009 for the course HUMA 76 taught by Professor Johnnyjames during the Fall '08 term at Foothill College.

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46 - The University of the State of New York REGENTS HIGH...

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