Regents Living Environment Test Preparation Practice

    Regents Test, Full Exam Practice Online: living environment August 2014

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    Base your answer to question 33 on the energy pyramid below and on your knowledge of biology.

    ecology, materials cycle through ecosystems fig: lenv82014-exam_g7.png

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    Base your answer to question 35 on the information and data table below and on your knowledge of biology.

    The Thousand Islands region in upstate New York has many isolated islands. On one island, a fire burned most of the trees. The data table below indicates the percentages of tan beetles and dark-brown beetles present before and after the fire.

    evolution, naturel selection fig: lenv82014-exam_g10.png

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    Base your answers to questions 37 and 38 on the diagram below and on your knowledge of biology.

    ecology, relationships among organisms fig: lenv82014-exam_g11.png

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    Base your answers to questions 40 and 41 on the diagram below and on your knowledge of biology. The diagram represents events that occur during embryonic development. Letters A through E represent structures.

    reproduction and development, defferentiation and embryonic development fig: lenv82014-exam_g13.png

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    Base your answers to questions 44 through 48 on the information below and on your knowledge of biology.

    Five groups of corn seeds, each containing 275 seeds, were soaked for 1 hour in different concentrations of gibberellic acid, a plant growth hormone. After 1 hour, the seeds were rinsed in tap water and drained of all excess water. The seeds were then placed on paper towels and kept moist for 7 days. After 7 days, the growing stems were cut and weighed to determine the increase in growth. Then, the percent increase in growth compared to the growth of a group of untreated seeds was calculated. The results were recorded and are shown in the data table below.

    labs, lab, appendix A, laboratory check list, scientific inquiry, data organization, plot and interpretation fig: lenv82014-exam_g20.png

    Directions: Using the information given in the data table, construct a line graph on the grid, following the directions below.

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    Base your answers to questions 49 and 50 on the graph below and on your knowledge of biology.

    scientific inquiry, data organization, plot and interpretation fig: lenv82014-exam_g22.png

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    Base your answers to questions 53 through 55 on the diagram below and on your knowledge of biology. The diagram represents a food web.

    ecology, relationships among organisms, ecology, relationships among organisms fig: lenv82014-exam_g23.png

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    Base your answers to questions 56 through 59 on the information below and on your knowledge of biology.

    There has been an increase in the number of dead birds found on the beaches of the Great Lakes. These birds were poisoned by a bacterial toxin in the lake water. The birds do not ingest enough water to become sick directly from the toxin found in the lake water. Scientists think that the cause of the increasing bird deaths lies with an invasive species— the zebra mussel. This freshwater organism was introduced into the Great Lakes accidentally by humans, and has become well established in the Great Lakes. Zebra mussels filter out microscopic organisms, as well as the toxins found in the lake water. The toxins become concentrated in the zebra mussels, which are eaten by small fish called gobies, and the gobies are eaten by the birds. The concentration increases in each level of the food chain. It appears that the introduction of the zebra muscles into the Great Lakes has resulted in a new food chain that increases the concentration of the naturally occurring toxins and passes dangerous levels on to these top-level predators. This process is known as bioaccumulation.

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    Base your answer to question 64-68 on the information below and on your knowledge of biology.

    Some poinsettia plants have green leaves that turn red. A garden club decided to study the color change of poinsettia plants. Knowing that poinsettias change color during the short daylight periods of winter, they decided to investigate the effect of different daylight lengths on color change.

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    Base your answer to question 70 on the information below and on your knowledge of biology.

    Researchers monitoring the atmosphere of Earth report that the ozone shield has stopped shrinking and will most likely be on the mend over the next several decades. These findings were based on analyses of satellite records and instruments monitoring the surface of Earth. Scientists credit an international agreement to phase out the production of ozone- depleting chemicals for this turnabout.

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    Base your answers to questions 71 and 72 on the information below and on your knowledge of biology.

    Climate Change for Biotechnology

    Many people were surveyed in 2002 and asked their opinion of some procedures that involved biotechnology. These procedures are listed below.

    • Genetic testing to detect inheritable diseases, such as cystic fibrosis

    • Cloning human cells to replace diseased cells in an individual with Parkinson’s disease, diabetes, or heart disease

    • Using xenotransplants introducing human genes into pigs to produce hearts for human transplants

    • Genetically modifying crops (GM crops) to make crop plants insect resistant

    • Genetically modifying foods (GM foods) to make them higher in protein

    These people were asked whether the technology should be used, if the technology was risky, if the technology is morally acceptable, and if they would encourage the technology. Those surveyed rated each technology as “definitely agree,” “tend to agree,” “no opinion,” “tend to disagree,” and “definitely disagree.” The responses were given a numerical score and then averaged together. The results of the survey are shown below.

    Adapted from: Gaskell, et. al., AgBioForum, 2003, Volume 6, Article 12

    genetics and biotechnology, applications of biotechnology fig: lenv82014-exam_g25.png

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    Base your answers to questions 76 and 77 on the information below and on your knowledge of biology.

    labs, lab, the beaks of finches fig: lenv82014-exam_g30.png

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    Base your answers to questions 78 through 80 on the information below and on your knowledge of biology.

    A laboratory procedure involving a microscope slide is represented in the diagram below.

    labs, lab, diffusion through a membrane fig: lenv82014-exam_g31.png

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    Base your answers to questions 81 and 82 on the diagram below and on your knowledge of biology. The diagram represents two solutions, A and B, separated by a selectively permeable membrane.

    labs, lab, diffusion through a membrane fig: lenv82014-exam_g32.png

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    Base your answers to questions 83 through 85 on the information below and on your knowledge of biology.

    The relationship between lung capacity and gender was studied in a laboratory investigation. Relative lung capacity was measured by having each student fill a balloon with a deep breath and then measuring the circumference of the balloon. Each student was given three trials and the average balloon circumference was recorded in the data table below.

    labs, lab, making connections fig: lenv82014-exam_g34.png

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