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Ammonium nitrate is


A) an atom.
B) a molecule.
C) a cell.
D) a tissue.
E) a biosphere.

F) A) and B)
G) D) and E)

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Which of the following is not a "control" in an experimental procedure?


A) a placebo
B) a known standard of comparison
C) a normal group
D) an experimental group
E) a "zero"-value group

F) D) and E)
G) All of the above

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Asexual reproduction differs from sexual reproduction in that


A) asexual reproduction produces genetically diverse offspring.
B) asexual reproduction utilizes DNA from two parents to code for traits in offspring.
C) asexual reproduction occurs only in plants.
D) asexual reproduction produces offspring containing DNA from only one parent.
E) asexual reproduction only occurs in animals.

F) B) and C)
G) A) and D)

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In a scientific experiment,the investigator measures the response of the ________ variable(s) .


A) independent
B) dependent
C) control group
D) standardized
E) dependent and independent

F) D) and E)
G) All of the above

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Which of the following questions cannot be answered by science?


A) What is the meaning of life?
B) Why is the sky the color blue?
C) What causes species' extinctions?
D) How did I start from only an egg and sperm?
E) Why is too much fatty food bad for me?

F) A) and C)
G) B) and D)

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What is the advantage to the Madagascan orchid of having an 11-inch long nectar tube?


A) It can produce nectar over a larger area and attract more pollinators.
B) It can collect more rainwater.
C) It can be pollinated easily only by the moths with long tongues.
D) It can collect more sunlight for photosynthesis.
E) It can trap insects as a source of nutrients.

F) C) and D)
G) A) and C)

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What did Charles Darwin predict after observing the 11-inch long nectaries of the Angraecum sesquipedale orchid in Madagascar?


A) the existence of a moth with a 10-11 inch long tongue
B) the existence of a competitor that also possessed especially long nectaries
C) the presence of very small bees that could fit into long nectaries
D) that the orchid must reproduce asexually
E) that the orchid was an evolutionary dead end and could no longer reproduce

F) A) and B)
G) C) and D)

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The scientific method cannot be used to answer questions about immaterial and philosophical issues.

A) True
B) False

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True

Which statement about a hypothesis is incorrect?


A) It can be proven true.
B) It can be proven false.
C) It is a tentative explanation.
D) It is based on previous knowledge.
E) It must be testable to be useful.

F) All of the above
G) A) and E)

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A

In a scientific experiment,the investigator manipulates the ________ variable(s) to determine whether it causes another variable to change.


A) standardized
B) control group
C) dependent
D) independent
E) control group and standardized

F) All of the above
G) A) and B)

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Why isn't scientific inquiry foolproof?


A) Multiple interpretations of the data are possible.
B) Definitive answers may not exist.
C) Observations can be misinterpreted.
D) Unexpected conclusions are not always readily accepted.
E) All answers are correct.

F) A) and B)
G) C) and D)

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In cleaning up after lab,you have to sort cards into boxes.You would put all of the below cards into a box marked "ecosystem" except 


A) community.
B) biosphere.
C) populations.
D) organisms.
E) nonliving environmental components.

F) A) and C)
G) B) and E)

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How do you know the computer you are working on is not alive?


A) It is not made of cells.
B) It does not maintain an internal consistency of water, solutes, and other components.
C) It cannot reproduce, asexually or sexually.
D) It cannot evolve.
E) All answers are correct.

F) A) and D)
G) B) and D)

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The bacterium Staphylococcus aureus belongs to which domain?


A) Eukarya
B) Archaea
C) Prokarya
D) Protista
E) Bacteria

F) A) and E)
G) A) and B)

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Which is the correct sequence for levels of biological organization occurring beyond an organism?


A) population - ecosystem - community - biosphere
B) community - population - ecosystem - biosphere
C) community - population - biosphere - ecosystem
D) population - community - ecosystem - biosphere
E) ecosystem - population - biosphere - community

F) None of the above
G) C) and D)

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If you observed a newly discovered 'thing' and tried to decide if it might be alive,what would be the weakest distinction for life?


A) homeostasis
B) movement
C) structural organization
D) evolution
E) energy use

F) A) and E)
G) A) and D)

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B

What statement deals with an aspect of experimentation but with the incorrect explanation?


A) The larger the sample size, the more meaningful the results.
B) The smaller the sample size, the more meaningful the results.
C) A control group is an untreated group and provides a basis for comparison.
D) It is important to standardize aspects of an experiment that might affect the outcome, other than the independent variable.
E) All answers are correct.

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

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All living organisms


A) are prokaryotes.
B) are either unicellular or multicellular.
C) are eukaryotes.
D) are multicellular.
E) are unicellular.

F) B) and D)
G) A) and B)

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You are sorting cards with pictures of organisms and their descriptions into groups.You would place the card with an osprey and the description "organisms that obtain energy by consuming other organisms" with cards for other 


A) autotrophs.
B) plants.
C) heterotrophs.
D) producers.
E) photosynthesizers.

F) B) and D)
G) All of the above

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You want to test Charles Darwin's prediction that an orchid with long pollen tubes has a pollinator with long,thin mouthparts that can reach the bottom of the elongated nectar tube.You place nets over some orchids,which allows pollinators with small,short mouthparts to enter but prevents the entry of pollinators with long,thin mouthparts.Next,you compare the number of seeds produced by plants with and without the nets.In this experiment,seed production is a(n)  


A) dependent variable.
B) hypothesis.
C) theory.
D) independent variable.
E) standardized variable.

F) A) and B)
G) A) and C)

Correct Answer

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