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Living Environment - New York Regents June 2010 Exam

   Directions (1–30): For each statement or question, write on your 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 Why is a mushroom considered a heterotroph?
  (1) It manufactures its own food.
  (2) It divides by mitosis.
  (3) It transforms light energy into chemical
      energy.
  (4) It obtains nutrients from its environment.

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  Half-n-half Clue
 

2.

2 Three days after an organism eats some meat,
  many of the organic molecules originally
  contained in the meat would be found in newly
  formed molecules of
  (1) glucose             (3) starch
  (2) protein             (4) oxygen

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3.

3 Which body system is correctly paired with its
  function?
  (1) excretory—produces antibodies to fight
      disease-causing organisms
  (2) digestive—produces hormones for storage
      and insulation
  (3) circulatory—transports materials for energy
      release in body cells
  (4) respiratory—collects waste material for
      digestion

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4.

4 Which statement best explains why some cells in
  the reproductive system only respond to certain
  hormones?
  (1) These cells have different DNA than the
      cells in other body systems.
  (2) These cells have specific types of receptors
      on their membranes.
  (3) Reproductive system cells could be harmed
      if they made contact with hormones from
      other body systems.
  (4) Cells associated with the female reproductive system only respond to the hormone
      testosterone.

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5.

5 In the cell shown below, which lettered structure
  is responsible for the excretion of most cellular
  wastes?

(1) A   (3) C
(2) B   (4) D

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6.

6 What is the main function of a vacuole in a cell?
  (1) storage
  (2) coordination
  (3) synthesis of molecules
  (4) release of energy

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7.

7 If 15% of a DNA sample is made up of thymine, T,
  what percentage of the sample is made up of
  cytosine, C?
  (1) 15%                  (3) 70%
  (2) 35%                  (4) 85%

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  Half-n-half Clue
 

8.

8 Global warming has been linked to a decrease in the
  (1) size of the polar ice caps
  (2) temperature of Earth
  (3) rate of species extinction
  (4) rate of carbon dioxide production

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9.

9 Several structures are labeled in the diagram of
  a puppy shown below.

Every cell in each of these structures contains
(1) equal amounts of ATP
(2) identical genetic information
(3) proteins that are all identical
(4) organelles for the synthesis of glucose

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10.

10 A characteristic that an organism exhibits during
   its lifetime will only affect the evolution of its
   species if the characteristic
   (1) results from isolation of the organism from
        the rest of the population
   (2) is due to a genetic code that is present in the
        gametes of the organism
   (3) decreases the number of genes in the body
        cells of the organism
   (4) causes a change in the environment
        surrounding the organism

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  Half-n-half Clue
 

11.

11 Agriculturists have developed some varieties of
   vegetables from common wild mustard plants,
   which reproduce sexually. Which statement best
   explains the development of these different
   varieties of vegetables?
   (1) Different varieties can develop from a single
       species as a result of the recombination of
       genetic information.
   (2) Different species can develop from a single
       species as a result of the effect of similar
       environmental conditions.
   (3) Mutations will occur in the genes of a species
       only if the environment changes.
   (4) Variations in a species will increase when the
       rate of mitosis is decreased.

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12.

12 The diagram below represents a technique used
   in some molecular biology laboratories.

This technique is a type of
(1) chromatography
(2) gel electrophoresis
(3) direct harvesting
(4) genetic engineering

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13.

13 A species of bird known as Bird of Paradise has
   been observed in the jungles of New Guinea.
   The males shake their bodies and sometimes
   hang upside down to show off their bright colors
   and long feathers to attract females. Females
   usually mate with the “flashiest” males. These
   observations can be used to support the concept
   that
   (1) unusual courtship behaviors lead to extinction
   (2) some organisms are better adapted for asexual
       reproduction
   (3) homeostasis in an organism is influenced by
       physical characteristics
   (4) behaviors that lead to reproductive success
       have evolved

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14.

14 Which statement concerning the evolution of
   species A, B, C, D, and E is supported by the
   diagram below?

(1) Species B and C can be found in today’s environments.
(2) Species A and D evolved from E.
(3) Species A and C can still interbreed.
(4) Species A, B, and E all evolved from a common
    ancestor and all are successful today.

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15.

15 The diagram below represents a process that
   occurs during human reproduction.

The process represented by the arrow will
ensure that the
(1) zygote contains a complete set of genetic
    information
(2) gametes contain a complete set of genetic
    information
(3) zygote contains half of the genetic information
(4) gametes contain half of the genetic information

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