Regents Living Environment Test Preparation Practice

    Regents Test, Full Exam Practice Online: living environment January 2016

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30

    Base your answers to questions 31 and 32 on the graphs below and on your knowledge of biology. The graphs show the effect of sewage (human organic waste) flowing into a lake on the level of dissolved oxygen in the water and the size of different fish populations.

    human influences on the environment, human influences on diversity of the environment fig: lenv12016-examw_g7.png

    31
    32

    Base your answers to questions 33 and 34 on the information below and on your knowledge of biology.

    The emerald ash borer is an insect that was introduced into North America sometime in the 1990s. It probably arrived in the United States in wooden packing material carried in cargo ships or on airplanes coming from Asia. The ash borer was first reported killing ash trees in Michigan in 2002. Since then, it has spread to Pennsylvania and New York.

    Since its arrival, the insect has destroyed tens of millions of trees. One of the ways the ash borer has been able to spread so quickly is through the transport of wood that is infested with their larvae. The USDA has proposed the introduction of Asian wasps to control the ash borer population.

    33
    34
    35
    36

    Base your answers to questions 37 and 38 on the diagram and information below and on your knowledge of biology. The diagram represents a germinating bean seed that has been split open.

    organization and patterns in Life, cell structure and functions fig: lenv12016-examw_g8.png

    37
    38

    Base your answers to questions 39 through 41 on the passage below and on your knowledge of biology.

    Blood Doping

    Some athletes who compete in endurance events, such as marathon runners or cyclists, believe that they will be more competitive if they can increase the number of red blood cells in their bloodstreams. One way of increasing the number of red blood cells in an athlete is to engage in blood doping.

    Blood doping is an illegal practice in which athletes harvest their own blood months before a competition, isolate the red blood cells, and freeze them. Just before the date of the competition, the blood cells are returned to the athlete’s bloodstream. Another type of blood doping involves using donated blood from another person (blood transfusions). In either case, the athlete will have more red blood cells available than competitors who do not engage in blood doping.

    Athletes who use their own blood cells to blood dope often become anemic as a result. Anemia is a condition caused by a lack of red blood cells and/or iron in the blood. Iron is a necessary part of the pigment used to carry oxygen to the cells. Athletes who use donated blood to blood dope also run the risk of contracting a blood-borne disease.

    39
    40
    41

    Base your answers to questions 42 and 43 on the graph below and on your knowledge of biology. The graph shows the number of species that have become extinct since 1800. It also shows the change in the size of the human population for the same period of time.

    human influences on the environment, human influences on global stabilities of ecosystems fig: lenv12016-examw_g10.png

    42
    43

    Base your answers to questions 44 through 47 on the information and data table below and on your knowledge of biology.

    The diagram below represents a setup used in an experiment to determine the effect of temperature on fermentation. Fermentation is a type of respiration in yeast that produces alcohol and a gas. Five setups were used. Each was kept at a different temperature. The number of gas bubbles released in each tube was counted and recorded in the data table below.

    scientific inquiry, data organization, plot and interpretation fig: lenv12016-examw_g11.png

    scientific inquiry, data organization, plot and interpretation fig: lenv12016-examw_g12.png

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

    44
    45
    46
    47
    48

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

    Since 1980, the vulture population in India has declined from 40 million to 60 thousand due to poisoning by a pain reliever used in cattle. If only 1% of the cattle carcasses fed on by vultures are animals that have been treated with the drug, it can lead to a drastic decline in the vulture population. The grim picture is that over 10% of the carcasses have been found to contain this drug.

    Vultures feed exclusively on the carcasses of dead animals. This helps to prevent the spread of diseases such as rabies and anthrax among wildlife, livestock, and humans. Without as many vultures present, other scavengers such as dogs have moved in and taken advantage of the newly available food. The abundance of these other scavengers has led to an increase in the number of cases of human rabies and an outbreak of tuberculosis, anthrax, and foot-and-mouth disease. These diseases are not spread to humans by vultures.

    49
    50

    Base your answers to questions 51 through 54 on the information below and on your knowledge of biology.

    Scientists will often grow bacteria in prepared petri dishes. In some experiments, the petri dish will also contain paper disks soaked in a particular antibiotic. The area where the bacteria do not grow is called the zone of inhibition, or ZOI. The diameter of the ZOI indicates the effectiveness of the antibiotic.

    The ZOI data collected by one scientist while trying to determine which disk (A, B, C, or D) is most effective at killing Streptococcus bacteria are: Disk D–9 mm, Disk B–8 mm, Disk C–0 mm.

    51
    52
    53
    54

    Base your answer to question 55 on the information below and on your knowledge of biology.

    Termites depend on microbes living in their guts to digest molecules of the large, complex carbohydrate, cellulose. Cellulose is the part of wood termites feed on. The microbes produce a substance called cellulase, which speeds up the breakdown of cellulose into molecules of glucose. Termites cannot make cellulase on their own. Without the help of the microbes, the termites are not able to absorb the nutrients that they need to survive.

    55
    56

    Base your answers to questions 57 and 58 on the chart below and on your knowledge of biology. The chart shows seasonal changes in an ecosystem and the overall carrying capacity of the ecosystem.

    ecology, organization of ecosystems  fig: lenv12016-examw_g17.png

    57
    58

    Base your answers to questions 59 through 61 on the information below and on your knowledge of biology.

    Solid Waste Management Act of 1988

    In the Solid Waste Management Act of 1988, the New York State legislature established our State Solid Waste Management Policy. The solid waste management priorities in New York State are:

    (a) first, to reduce the amount of solid waste generated; (b) second, to reuse material for the purpose for which it was originally intended or to

    recycle material that cannot be reused; (c) third, to recover, in an environmentally acceptable manner, energy from solid waste

    that can not be economically and technically reused or recycled; and (d) fourth, to dispose of solid waste that is not being reused, recycled or from which

    energy is not being recovered, by land burial or other methods approved by the department.

    59
    60
    61

    Base your answers to questions 62 and 63 on the information below and on your knowledge of biology.

    Guppies are small, tropical freshwater fish that display wide variation in coloration. Some have bright splotches of blue, red, and orange, while others are quite drab and dull. Research has shown that females prefer to mate with brightly colored males; however, this trait makes them more likely to be seen. Guppies, like all species, must be able to both sur- vive and reproduce in order to avoid extinction.

    62
    63
    64-67

    Base your answers to questions 68 through 70 on the information below and on your knowledge of biology.

    EVOLUTION OF THE ELEPHANT

    Today’s elephants are the result of a long process of evolution. Over millions of years, small changes were passed from one generation to the next. The first fossil elephant species were small, but over time, they increased both in size and weight. The three species alive today are the sole survivors of a once much more widespread group.

    Source: www.factmonster.com/dk/science/encyclopedia/evolution.html

    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80

    Base your answers to questions 81 and 82 on the information in the diagram below and on your knowledge of biology.

    labs, lab, the beaks of finches fig: lenv12016-examw_g25.png

    81
    82

    Base your answers to questions 83 through 85 on the diagram below, which shows the evolution of Hawaiian Honey Creepers from a common ancestor. As their ancestors spread to new islands, they found a variety of dif- ferent food sources. Gradually, behaviors and beak structures evolved that took advantage of these different food sources, resulting in the formation of several new species.

    labs, lab, the beaks of finches fig: lenv12016-examw_g26.png

    83
    84
    85