1 Diagrams, tables, and graphs are used by scientists mainly to

(1) design a research plan for an experiment
(2) test a hypothesis
(3) organize data
(4) predict the independent variable

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2 A scientist tested a hypothesis that white-tailed deer would prefer apples over corn as a primary food source. The findings of the test, in which the scientist claimed that the deer preferred apples, were
published. Which research technique, if used by the scientist, might
result in this claim being questioned?

(1) The scientist observed four deer in different locations at various times of the day.
(2) The scientist observed a total of 500 deer in 20 different locations at various times of the day.
(3) The scientist observed 200 deer in various natural settings, but none in captivity.
(4) The scientist observed 300 deer in various locations in captivity, but none in natural settings.

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3 What happens to certain nutrient molecules after they pass into muscle cells?

(1) They are replicated in the nucleus.
(2) They are acted on by enzymes and release the energy they contain.
(3) They are changed into tissues and organs in the cytoplasm.
(4) They enter chloroplasts, where they can absorb light energy.

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4 A medical test indicates that a patient has a defective protein. This condition is most likely due to a change in the directions coded in the

(1) number of hydrogen atoms in starch molecules
(2) sequence of inorganic molecules
(3) number of carbon atoms in sugar molecules
(4) sequence of subunits in DNA  

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5 If a human system fails to function properly, what is the most likely result?

(1) a stable rate of metabolism
(2) a disturbance in homeostasis
(3) a change in the method of cellular respiration
(4) a change in the function of DNA

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