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Living Environment - New York Regents June 2012 Exam

   Directions (1–30): For each statement or question, record on the separate answer sheet the number of the
word or expression that, of those given, best completes the statement or answers the question.

Formats View Examination Paper with Answers Solve Examination Paper Questions Review
: Multiple choice

Your Performance  

1.

1 One characteristic of all living things is that they
  (1) develop organ systems
  (2) produce identical offspring
  (3) maintain internal stability
  (4) synthesize only inorganic matter

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2.

2 The diagram below represents interactions
  between organisms in a stable ecosystem.

Which statement correctly describes organisms
in this ecosystem?
(1) Organisms in level B obtain their energy
    directly from the Sun.
(2) Organisms in level C obtain their nutrients
    directly from organisms in level D.
(3) Organisms in level A are herbivores.
(4) Organisms in level D are heterotrophic.

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3.

3 Due to overfishing, the number of fish in the
  ocean could drastically decrease. This will cause
  (1) an increase in the stability of the oceans
  (2) an increase in the salt content of the oceans
  (3) a decrease in the stability of the oceans
  (4) a decrease in the oxygen available in the oceans

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4.

4 Which substance can enter a cell by diffusion
  without having to be digested?
  (1) water                (3) starch
  (2) protein              (4) fat

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5.

5 A single-celled organism is represented below.

Structure X carries out a function most similar to
which structure in a human?
(1) lung                   (3) ovary
(2) brain                  (4) heart

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6.

6 Parrots are tropical birds. However, in some
  areas of New York City, some parrots have been
  able to survive outdoors year-round. These
  parrots survive, while most others cannot, due to
  (1) overproduction of offspring
  (2) extinction of previous species
  (3) asexual reproduction of parrots with a mutation
  (4) a variation that allows these parrots to live in
      colder climates

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7.

7 Changing one base in a gene could have the
  most direct effect on the
  (1) function of the membrane of a cell
  (2) sequence of building blocks of a protein
      found in a cell
  (3) number of mitochondria in a cell
  (4) type of carbohydrates synthesized by a cell

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8.

8 An alteration of genetic information is shown
  below.
      A-G-T-A-C-C-G-A-T → A-G-T-G-A-T
  This type of alteration of the genetic information
  is an example of
  (1) deletion                (3) substitution
  (2) insertion               (4) recombination

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9.

9 The table below shows adaptations in two organisms.

The presence of these adaptations is most likely the result of
(1) reproductive technology                                (3) asexual reproduction
(2) natural selection                                      (4) human interference

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10.

10 The diagram below represents an activity that occurs in the human body.

This diagram best illustrates
(1) active transport             (3) synthesis of nutrients
(2) maintenance of homeostasis   (4) differentiation

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11.

11 In which row in the chart below is a human action correctly paired with its environmental impact?

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12.

12 A laboratory technique is represented in the
   diagram below. Letter A represents a process.

Which specific chemicals are needed to successfully carry out the process shown at A?
(1) receptor molecules (3) enzymes
(2) carbohydrates          (4) starch molecules

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13.

13 The diagram below represents genetic material.

The expression of the section labeled X may be
modified by
(1) temperature, only
(2) asexual reproduction
(3) the environment
(4) pH, only

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14.

14 Characteristics that are harmful to a species tend
   to decrease in frequency from generation to
   generation because these characteristics usually
   (1) have a high survival value for the species
   (2) have a low survival value for the species
   (3) are inherited by more individuals
   (4) affect only the older members of the population

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15.

15 Which situation results in a characteristic that is
   inheritable?
   (1) A limb is lost when two marine organisms fight.
   (2) A puppy learns to beg for food by watching
       an older dog perform tricks.
   (3) A gene is inserted into a bacterium, allowing
       the organism to produce insulin.
   (4) A random mutation causes the immediate
       death of a microbe.

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