최신 GED-Science 무료덤프 - GED Science
The movements of different freshwater fish were tracked as they swam in waters of varying temperatures. Assuming that "normal" aquarium water temperature is 25(degrees) C, the effects of water temperature on movements were found within a temperature range from 18(degrees) C to 28(degrees)
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What statement is the best conclusion that can be made based on the information collected in this experiment?
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What statement is the best conclusion that can be made based on the information collected in this experiment?
정답: D
The pancreas regulates blood sugar level through two hormones: insulin and glucagon. When the blood sugar level is high, the pancreas releases insulin, which lowers the sugar level in the blood. When the blood sugar level is low, the pancreas releases glucagon, which causes the cells to release sugar.
Why do people who are diabetics have a high blood sugar level?
Why do people who are diabetics have a high blood sugar level?
정답: D
The graph at the left includes data from an experiment that showed how long a windup toy ran after different numbers of turns of the key.
What should have been done to ensure the accuracy and reliability of the experiment?
What should have been done to ensure the accuracy and reliability of the experiment?
정답: B
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The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.
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The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.
-- Exhibit --
Which of the following substances is the MOST acidic?
You will be able to use an Information button to view the material on each question screen.
The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.
-- Exhibit -
The pH scale is a measure of the acidity of a substance. The numerical range of the scale is from 0.0 to 14.0. A midpoint pH of 7.0 designates a neutral substance (neither acid nor base). A pH lower than 7.0 denotes an acid substance, whereas a pH higher than 7.0 denotes a basic substance.
-- Exhibit --
Which of the following substances is the MOST acidic?
정답: A
In the years since the OPEC oil embargo of 1974, increased public attention has been focused on ways to solve the "energy crisis" in the United States. This public awareness has resulted in practical suggestions for consumers, changes in government policy, research aimed at creating scientific advances in renewable energy resources, and more efficient use of existing energy resources.
Which method can be tested in a laboratory setting?
Which method can be tested in a laboratory setting?
정답: A
For an organism to survive, it needs food, water, oxygen, living space, and the ability to maintain a relatively constant body temperature. Warm-blooded animals have ways to adjust their body temperature to compensate for fluctuations in environmental temperature. The body temperatures of cold-blooded animals, such as fish, vary directly with the temperature of their environments.
Power plants and factories can release heated water into nearby rivers and steam into the air.
Which animals downstream of a power plant would be the most affected by thermal pollution discharges from the power plant?
Power plants and factories can release heated water into nearby rivers and steam into the air.
Which animals downstream of a power plant would be the most affected by thermal pollution discharges from the power plant?
정답: D
Based on the information, which ingredient of ordinary bread is the biggest source of carbohydrates?
정답: B
A pet shop wants to install a fountain that contains live fish. The temperature in the facility is kept at 67(degrees) F (19(degrees) C) throughout the year.
The following chart gives the preferred temperature range for certain fish species.
Which fish would be most likely to thrive in this environment?
The following chart gives the preferred temperature range for certain fish species.
Which fish would be most likely to thrive in this environment?
정답: D