August 2018 Living Environment Regents Questions 31-40 Question Preview (ID: 56842)

Use Your Knowledge Of Living Environment To Answer All Questions In The Data Set. You May Need A Calculator To Answer Some Of The Questions. Good Luck. Corresponding Data Sets: 56839, 56840, 56841, 56842. TEACHERS: click here for quick copy question ID numbers.

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Which tool is correctly paired with a procedure that could be used during this experiment?

a) an electronic balance to measure the volume of soil in which each corn plant is grown

b) a graduated cylinder to measure 30 mL of water for each plant daily

c) a metric ruler to determine the mass of each plant each week

d) a Celsius thermometer to determine the pH of the soil

The independent variable in this experiment is the

a) air temperature at which the corn plants were grown

b) amount of carbon dioxide used by the corn plants

c) volume of oxygen produced by the corn plants

d) number of corn plants used

The graph can best be used to illustrate

a) a food chain

b) ecological succession

c) natural selection

d) carrying capacity

The approximate number of animals that were found in June 2012 was most likely

a) 16

b) 26

c) 76

d) 86

Based on this observation, the scientist could conclude that

a) all ten food sources used in the experiment are capable of supporting this species of bacteria

b) the temperature varied greatly in nine of the containers during this experiment

c) only the container that failed to grow any bacteria was prepared correctly

d) this species of bacteria synthesizes enzymes needed to digest the food in nine of the ten containers

Which statement is supported by the graph?

a) Climate change will result in the melting of polar ice caps.

b) The increase in carbon dioxide levels will cause a decrease in global average temperature

c) Human activities have no effect on atmospheric carbon dioxide levels.

d) Future generations can be affected by the choices of current generations.

Which conclusion is valid based upon the data collected by the student?

a) The change in pH prevents catalase from breaking down water.

b) Catalase has the greatest activity at a pH of 7.

c) Oxygen production will increase if more water is added to the reaction.

d) Catalase caused the greatest production of oxygen at a pH of 3.

The best explanation for the change in catalase activity as the pH changed from 7 to 3 is that

a) strong acid digests the catalase, causing the reaction rate to increase

b) the student most likely cooled the H2O2 solution, causing the reaction rate to increase

c) in acidic solutions, the shape of catalase changes, causing the reaction rate to decrease

d) decreased oxygen production causes catalase to increase the rate of reaction

Which graph best illustrates the body temperature in an individual maintaining dynamic equilibrium?

a) 1

b) 2

c) 3

d) 4

The 2003 Energy Star models of refrigerators use an average of about 450 kilowatt hours of electrical energy annually. Approximately how much energy is saved by these models annually when compared to the models produced in 1972?

a) 500 kilowatt hours

b) 550 kilowatt hours

c) 1500 kilowatt hours

d) 1550 kilowatt hours

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