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Exam 19: Enewable Energy

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Question 1

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Which of the following statements best embodies the qualities of a scientific theory?

A) Prairies that have large herds of bison show greater plant diversity than prairies without bison.
B) Dangerous wildfires in California could be avoided by better fire prevention strategies.
C) Squirrels in central Illinois prefer to build their nests in oak trees instead of hickory trees.
D) All gases,liquids,and solids consist of atoms.

E) All of the above
F) B) and C)

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Question 2

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Which of the following statements best illustrates bias in scientific investigations?

A) Researchers studying heron nests notice that some baby herons fall out of nests and are killed.
B) An experiment testing the effect of a new drug has only one control group.
C) Investigations of the cause of AIDS are limited by our inability to see viruses.
D) Investigations of the health effects of smoking are funded and published by a tobacco company.

E) None of the above
F) A) and B)

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Question 3

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All science and scientific discoveries are founded upon________ .

-How much higher is atmospheric CO₂ concentration at Mauna Loa Observatory in 2015 than it was in 1960?

An experiment __________.

Read the following scenario, and answer the questions below. THE EXPERIMENT: Researchers wanted to determine whether pesticide Z is effective at killing grasshoppers that typically invade cornfields. Two 10- acre cornfields located 1 mile apart were chosen. The cornfield to the west was sprayed only with water. The cornfield on the east received the same amount of water with a 10% solution of pesticide Z. The number of grasshoppers in the fields was recorded every week for 10 weeks. RESULTS: The number of grasshoppers in the west field treated only with water doubled after 10 weeks. The number of grasshoppers in the east field treated with pesticide Z declined by 50% after 10 weeks. -If both fields had the same amount of grasshoppers at the start of the experiment,how many times more grasshoppers were in the west field than the east field after 10 weeks?

Read the following scenario, and answer the questions below. THE EXPERIMENT: Researchers wanted to determine whether pesticide Z is effective at killing grasshoppers that typically invade cornfields. Two 10- acre cornfields located 1 mile apart were chosen. The cornfield to the west was sprayed only with water. The cornfield on the east received the same amount of water with a 10% solution of pesticide Z. The number of grasshoppers in the fields was recorded every week for 10 weeks. RESULTS: The number of grasshoppers in the west field treated only with water doubled after 10 weeks. The number of grasshoppers in the east field treated with pesticide Z declined by 50% after 10 weeks. -What was the independent variable in the above experiment?

Of the following,which is the best scientific hypothesis for the question,"How do bees help pollinate flowers?"

Which of the following would be an emergent property of a motorcycle?

Which one of the following terms least applies to science?

A study's results are deemed worthy of acceptance into the body of scientific knowledge if they are published in journals that______ .

Geothermal energy,wind energy,and solar radiation are all examples of__________ .

The scientific peer- review process ensures that_________ .

-What is the independent variable in this study?

Compared to real science,pseudoscience_________ .

Which of the following terms best describes the practice of environmental science?

Why is it important to understand our interactions with the environment? What will studying environmental science enable you to do?

Negative feedback processes tend to function within an ecosystem to ___________.

A pharmaceutical company wishes to study a possible new headache medicine.They are doing human trials with 1,000 volunteers who experience frequent headaches.The researchers will need to ________.

Some students on a biology field trip were sitting around watching honeybees.Some of the students noticed that bees spent more time on some flowers than on other flowers.As they talked about this behavior,the students offered various explanations.Some thought that the bees were avoiding predators on some flowers,while other students suggested that some flowers may have sweeter nectar.These speculations about bee behavior are examples of_________ .