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Living Environment - New York Regents June 2016 Exam


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: Multiple choice

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16.

16 A farmer wanted to rid his apple trees of a
   particular leaf-eating insect. He sprayed his
   trees with an insecticide that killed 98% of the
   insects. The survival of 2% of this population of
   insects is most likely due to
   (1) genes obtained from another species
   (2) certain chemicals that stimulated over-
       production
   (3) variations that resulted from sexual repro-
       duction
   (4) their ability to produce food from the
       pesticide

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  Half-n-half Clue
 

17.

17 Which occurrence represents an example of
   evolution?
   (1) Exposure to radiation reduces the rate of
       mutation in leaf cells.
   (2) A mutation in a liver cell causes a person to
       produce an enzyme that is less efficient.
   (3) Cells in a zygote eventually change into bone
       cells or skin cells.
   (4) Some antibiotics are almost useless, because
       pathogens have developed a resistance to
       these antibiotics.

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18.

18 Populations of aspen trees in the western United
   States are being destroyed by an unexplained
   illness. The altered landscape is affecting the
   animals that live there. Populations of deer mice
   are increasing greatly in these areas.
   Unfortunately, these mice often carry a virus that
   is deadly to humans. This scenario best illustrates
   that
   (1) a change in the environment always results
        in disease
   (2) humans are the cause of the breakdown of
        this ecosystem
   (3) the stability of this ecosystem is limited by
        the amount of water available
   (4) every population in an ecosystem is linked
        with other populations

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19.

19 The paramecium is a single-celled organism
   that reproduces asexually. The offspring of a
   paramecium usually contain
   (1) only half of the genes of the parent cells
   (2) more DNA than the parent cell
   (3) genetic material identical to that of the
       parent cell
   (4) fewer mutations than the parent cell

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20.

20 A dead or weakened pathogen used to establish
   immunity would most likely be found in
   (1) a pesticide         (3) a vaccine
   (2) an antibiotic       (4) a toxin

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21.

21 Which statement is true for all of the organisms
   in the ecosystem represented in the diagram
   below?
(1) They use energy to combine the inorganic
    molecules carbon dioxide and water into
    energy-rich organic compounds.
(2) Stored energy cannot be used by these
    organisms as a source of energy for life
    processes.
(3) Energy stored in inorganic molecules is
    released during cellular respiration in these
    organisms.
(4) Energy is used by the organisms to obtain
    and transport materials, and to eliminate
    wastes.

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  Half-n-half Clue
 

22.

22 When a natural disaster destroys a stable
   ecosystem, the area is temporarily less stable
   than before. This is most likely due to
   (1) a decrease in biodiversity
   (2) an increase in the number of food chains
   (3) an increase in the number of species
   (4) a decrease in the rate of mutation

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23.

23 An individual walks out of his air-conditioned
   (75°F) home into the hot outside environment
   (85°F). His ability to adjust to this changing
   environment involves a mechanism similar to
   (1) the regulation of water loss by guard cells in
       plant leaves
   (2) the digestion of carbohydrates by enzymes
   (3) using ATP for the diffusion of water
   (4) glucose production in the pancreas

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24.

24 Nonrenewable resources are
   (1) not finite and are not depleted over time
   (2) not finite and are depleted over time
   (3) finite and are not depleted over time
   (4) finite and are depleted over time

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25.

25 Dodder, a plant with no chlorophyll, grows on a
   living plant of a different species from which it
   obtains nutrients. Which pair of terms describes
   this relationship?
   (1) parasite and host
   (2) predator and prey
   (3) producer and decomposer
   (4) consumer and scavenger

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26.

26 Three human hormones most directly involved
   in sexual reproduction are
   (1) estrogen, insulin, and progesterone
   (2) testosterone, estrogen, and insulin
   (3) progesterone, ATP, and testosterone
   (4) estrogen, progesterone, and testosterone

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27.

27 At one point, scientists observed that the ozone
   shield was getting thinner. They warned that the
   loss of the effectiveness of this shield may lead
   to an increase in
   (1) allergies to ozone
   (2) mutations that lead to cancer
   (3) viral diseases, such as AIDS
   (4) ice formation at the poles

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28.

28 As it grows from a seed to a mature plant, a plant
   will grow taller and thicker. Which are abiotic
   factors most responsible for the increase in the
   mass of the plant?
   (1) water, minerals, bacteria
   (2) sunlight, oxygen, plant receptors
   (3) minerals, water, plant enzymes
   (4) water, sunlight, carbon dioxide

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29.

29 Structures in an animal cell are represented in the diagram below.
Which row in the chart correctly identifies the functions of structures A, B, and C?

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30.

30 The diagram below represents how air pollution may move across the eastern United States.
In order to reduce the amount of air pollution in Pennsylvania, which change is necessary?
(1) Laws must be passed to protect endangered species.
(2) The use of natural resources must be increased.
(3) More coal-burning power plants must be built.
(4) The cooperation between the different states must be improved.

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