Scientists typical do not use a specific environmental bioassay to draw general conclusions about a pollutant because they ________
A) are specific to all creatures in an ecosystem
B) can be performed quickly with little effort
C) may result in data that isn't applicable to other species
D) only predict the long-term effect of pollution on marine organisms
E) take into account how pollutants may combine to create new pollutants
C
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Which of the following is one of the human activities with the greatest harmful impact on the environment?
a. Food production b. Transportation c. Overall resource use d. Home energy use e. All of the above
Which of the following are unusual about Uranus?
A. Its orbit sometimes takes it closer to the Sun than Mars. B. Its axis of rotation, orientation of rings, and orbits of its moons are perpendicular to those of every other planet in the solar system. C. It has been reclassified as a dwarf planet. D. Ice on its surface has an unusual bluish-green color. E. None of these choices are correct.
Which of the following statistics is appropriate for use with categorical data?
A. Median B. Majority C. Sum D. Mean
A(n) ____________ distribution pattern describes organisms positioned in small patchy aggregations. Fill in the blank(s) with the appropriate word(s)