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Living Environment - New York Regents June 2013 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

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1.

1 Fish absorb oxygen through the gills, earthworms absorb oxygen through the skin, amebas
  take in oxygen through the cell membranes, and
  cows inhale oxygen through the nasal passages
  into their lungs. This statement demonstrates
  that living things
  (1) rely on similar or the same processes, but
      accomplish them in different ways
  (2) rely on different processes and accomplish
      them in different ways
  (3) rely on different processes, but perform
      them in the same or related ways
  (4) have no relationship to one another, and are
      all independent individuals

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2.

2 In New York State, small farms that were
  abandoned many years ago have become
  hardwood forests. This is an example of
  (1) local deforestation
  (2) biotechnology
  (3) ecological succession
  (4) habitat loss

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3.

3 Goats have been genetically modified to
  produce an anticlotting protein in their milk.
  The protein is extracted from the milk and given
  to people who have inherited a disorder that
  causes their bodies to produce blood clots,
  which can be fatal. A benefit of the technology
  used to produce this protein is that it
  (1) can be used to overcome the effects of a
      harmful mutation
  (2) can provide people with a new kind of
      nutrient-rich milk
  (3) will result in healthier goats with more
      nutritious milk for their offspring
  (4) will reduce blood clots in other farm animals
      that are modified in this way

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4.

4 The diagram below represents factors that affect
  New York State ecosystems.

An increase in human activity at X would most
likely result in
(1) a decrease in rainfall in the area
(2) a decrease in available carbon dioxide
(3) an increase in air pollution in the area
(4) an increase in the supply of fossil fuels

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5.

5 Which graph correctly represents the pattern of
  human population growth over the past 5000
  years?

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6.

6 The fossil record of ancient life forms provides
  scientific evidence of
  (1) direct harvesting
  (2) selective breeding
  (3) gene manipulation
  (4) evolutionary changes

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7.

7 Spider plants can reproduce both sexually and
  asexually. The diagram below represents a spider
  plant reproducing asexually by a method known
  as vegetative propagation.

Which statement best describes the relationship
between the parent plant and the offspring in
the diagram?
(1) The cells of the offspring contain half the
    amount of DNA as the cells of the parent
    plant.
(2) The parent plant provides genetic material
    to the offspring through its gametes.
(3) The cells of the offspring have the same
    genetic content as the cells of the parent
    plant.
(4) The cells of the parent plant have more
    genetic diversity, compared to the cells of
    the offspring.

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8.

8 The processes of deletion, insertion, and
  substitution can alter genes in a skin cell. The
  altered genes will most likely be passed on to
  (1) sperm cells
  (2) egg cells
  (3) every cell that develops from that skin cell
  (4) only a few of the cells that develop from that
      skin cell

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9.

9 Before starch can enter a cell, it must be
  (1) absorbed by simple sugars
  (2) diffused into simple sugars
  (3) digested to form simple sugars
  (4) actively transported by simple sugars

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10.

10 In a cell, protein synthesis is the primary
   function of
   (1) ribosomes          (3) chloroplasts
   (2) mitochondria       (4) vacuoles

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11.

11 In a multicellular organism, organs carry out a
   variety of life functions. In a single-celled
   organism, these functions are performed by
   (1) tissues               (3) organ systems
   (2) organelles            (4) organs

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12.

12 Chlorophyll gives plants their green color.
   Chlorophyll is produced only when plants are
   exposed to light, so plants kept in darkness have
   no chlorophyll and appear white. The best
   explanation for this is that
   (1) chlorophyll is not needed by green plants at
       night
   (2) darkness mutates the chlorophyll genes,
       causing them to produce a white color
   (3) light is required for chlorophyll genes to be
       expressed
   (4) genetic information in cells is not influenced
       by the outside environment

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13.

13 In order for the human body to maintain
   homeostasis, the breakdown of glucose to
   release energy must be followed by the
   (1) production of oxygen
   (2) division of the cell
   (3) removal of wastes
   (4) production of receptor molecules

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14.

14 In the past, humans developed varieties of dogs,
   such as the German shepherd and the bearded
   collie, using
   (1) selective breeding for particular traits
   (2) recombination of genes during mitosis
   (3) mutations present only in body cells
   (4) natural selection of favorable traits

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15.

15 In an organism, a muscle cell has the same DNA
   as a nerve cell, yet the cells perform different
   functions. This is possible because
   (1) different mutations occur in each cell type,
       changing the genetic instructions
   (2) temperature variations within the body alter
       DNA
   (3) proteins in each cell type change the
       structure of DNA
   (4) different parts of the genetic instructions are
       used in each type of cell

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