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Analisa conducted an experiment to determine if watching different types of commercials would affect a person's pulse. Her hypothesis was that pulse rate would change with different types of commercials. Each person watched seven different commercials, averaging 30 seconds each. Each person's pulse was taken before the commercial and then after each commercial. Based on her experiment Analisa concluded that a person's pulse rate changed when the person watched different types of commercials. Which component is missing from Analisa's experiment? A. a question B. a hypothesis C. a control
group D. a description of the experiment
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Asked 3/8/2012 6:40:39 PM
Updated 8/5/2014 4:32:34 PM
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User: The Virginia Opossum has gradually spread from the east coast of the United States to the west coast as well as northward into Canada. Researchers suggest this move north is in response to milder winters and man-made water reservoirs. This is an example of a A. result. B. theory. C. procedure. D. hypothesis.

User: Analisa conducted an experiment to determine if watching different types of commercials would affect a person's pulse. Her hypothesis was that pulse rate would change with different types of commercials. Each person watched seven different commercials, averaging 30 seconds each. Each person's pulse was taken before the commercial and then after each commercial. Based on her experiment Analisa concluded that a person's pulse rate changed when the person watched different types of commercials. Which component is missing from Analisa's experiment? A. a question B. a hypothesis C. a control group D. a description of the experiment

Weegy: A. a question
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User: In 1942 scientists came out with DDT, a miracle insecticide, able to kill most bugs on contact. Just before this the U.S. government placed the bald eagle under protection in an attempt to stop the killing of our national bird. By the mid 1960's it was apparent that something was wrong because the eagle population had declined so much it needed to be placed on the Endangered Species List. Scientists and environmentalists began investigating and it was concluded that DDT was one of the main culprits. In 1972, DDT was banned from use because of its effects as a pollutant. The graph shows the how many nests hold a specific number of eggs. Usually eagles average two eggs per nest. What can be concluded from these data? A. The banning of DDT in 1972 caused a decline in the number of eggs laid by eagles. B. Eagles migrating from New York to Canada are heartier than eagles migrating from Arizona to Oregon. C. The bald eagle population increased by 10% this year compared to last year. D. The number of nesting pairs of eagles increased to 50 pairs this year.

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Asked 3/8/2012 6:40:39 PM
Updated 8/5/2014 4:32:34 PM
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The Virginia Opossum has gradually spread from the east coast of the United States to the west coast as well as northward into Canada. Researchers suggest this move north is in response to milder winters and man-made water reservoirs. This is an example of a HYPOTHESIS.
Added 8/5/2014 4:30:17 PM
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Questions asked by the same visitor
In a scientific study a conclusion can A. state a theory. B. ask a question. C. prove a hypothesis. D. support a hypothesis.
Weegy: all of the above. e. (More)
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Updated 8/5/2014 4:36:11 PM
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In a scientific study a conclusion can: support a hypothesis.
Added 8/5/2014 4:35:29 PM
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Migraine Study Results The table shows the results of a study testing the effectiveness of a migraine medication. Why was one group given a sugar tablet? A. to include a control group B. to have an experimental group C. to provide a variety of treatments D. to give the body additional nutrients
Weegy: In the migraine study, one group was given a sugar tablet in order to: include a control group. User: Analisa conducted an experiment to determine if watching different types of commercials would affect a person's pulse. Her hypothesis was that pulse rate would change with different types of commercials. Each person watched seven different commercials, averaging 30 seconds each. Each person's pulse was taken before the commercial and then after each commercial. Based on her experiment Analisa concluded that a person's pulse rate changed when the person watched different types of commercials. Which component is missing from Analisa's experiment? A. a question B. a hypothesis C. a control group D. a description of the experiment (More)
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Expert Answered
Updated 8/5/2014 4:37:44 PM
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