Regents Living Environment June 2010 Question Answers

Regents Living Environment June 2010 Test Prep Question Answers Keys. The examination was administrated by the University Of The State Of New York, Regents High School.Regents Living Environment June 2010 Question Answers Keys. Download this June 2010 question answers free in PDF file. These Regents Science Living Environment questions are based on grade 8, high school, middle schools multiple choice questions.

Living Environment Question (June 2010)

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.

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.
Answer: (4) It obtains nutrients from its environment.

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
  • (2) protein
  • (3) starch
  • (4) oxygen
Answer: (4) It obtains nutrients from its environment.

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
Answer: (3) circulatory—transports materials for energy release in body cells

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.
Answer: (2) These cells have specific types of receptors on their membranes.

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

Regents Living Environment June 2010 Question Answers 5
  • (1) A
  • (2) B
  • (3) C
  • (4) D

6 What is the main function of a vacuole in a cell?

  • (1) storage
  • (2) coordination
  • (3) synthesis of molecules
  • (4) the release of energy
Answer: (2) coordination

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%
  • (2) 35%
  • (3) 70%
  • (4) 85%
Answer: (3) 70%

8 Global warming has been linked to a decrease in the 

  • (1) size of the polar ice caps
  • (2) the temperature of Earth
  • (3) the rate of species extinction
  • (4) the rate of carbon dioxide production
Answer: (4) the rate of carbon dioxide production

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

Regents Living Environment June 2010 Question Answers 9

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
Answer: (3) proteins that are all identical

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
Answer: (4) causes a change in the environment surrounding the organism

 

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