ACT - Science Reasoning

不定项选择题

Pamela is a young mother whose parents are both deceased. Assuming that disease X is a genetic disorder with either a dominant or a recessive inheritance pattern, which of the following statements is accurate？

A. If neither of Pamela’s parents ever had disease X, then Pamela does not and never will have disease X.
B. If neither Pamela nor the father of Pamela’s child has disease X, then that child will never have disease X.
C. If both of Pamela’s parents had at least one copy of the disease X gene,then Pamela also has at least one copy of the disease X gene.
D. If neither of Pamela’s parents ever had disease X, but Pamela has disease X,then disease X is not a dominantly inherited genetic disorder.

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不定项选择题

Which of the following test pairs reflects consistent experimental data？

A. Experiment 1, wing design 2;Experiment 2, airspeed 200
B. Experiment 1, wing design 1;Experiment 2, wing design 2
C. Experiment 1, wing design 3;Experiment 3, airspeed 400
D. Experiment 1, wing design 1;Experiment 3, airspeed 400

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不定项选择题

New fighter jets are being designed so that the wing is modifiable, depending on the speed at which the plane is going. Which<br>of the following would be a logical adjustment of the wing for such jets？

At speeds above 500 mph, the top of the wing would become flatter.
B. At speeds above 500 mph, the top of the wing would become more curved.
C. At speeds above 500 mph, the bottom of the wing would become curved.
D. None of the above

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不定项选择题

Which of the following is loam most likely to contain？

A. Sand
B. Clay
C. Silt
D. It cannot be determined from the information given.

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单选题

In the 2 studies, the purpose of oven-drying the mixed soil was to remove all the:

A. moisture.
B. organic matter.
C. soil test N.
D. amino sugar N.

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单选题

Which of the offspring listed below were collected in Study 1 ？ I. Juveniles II. Adults that were breeding III. Adults that were not breeding

A. I only
B. III only
C. I and III only
D. I, II, and III

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单选题

Based on Student 1’s discussion and Fact 4, while matter flowed between Algol A and Algol

A. hydrogen nuclei to make helium nuclei at its center.
B. hydrogen nuclei to make helium nuclei in a shell surrounding its center.
C. helium nuclei to make hydrogen nuclei at its center.
D. helium nuclei to make hydrogen nuclei in a shell surrounding its center.

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单选题

Based on the results of Study 1, the average monthly wet deposition for Cu2+ over the 12-month period was:

A. less than 50 μg/m2.
B. between 50 μg/m2 and 75 μg/m2.
C. between 75 μg/m2 and 100 μg/m2.
D. greater than 100 μg/m2.

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单选题

Which of the following sets of results from the studies is leastconsistent with the prediction proposed by theresearchers？

A. The results of Study 1 for AGTB
B. The results of Study 3 for AGTB
C. The results of Study 4 for frugivores
D. The results of Study 4 for hummingbirds

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单选题

Which of the following hypotheses about the relation-ship between the temperature and the

A. increases only.
B. decreases only.
C. increases, then decreases.
D. decreases, then increases.

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