A side effect of the Army’s solution to the
contamination problem at its Aberdeen Proving
Grounds is
a. increased ground-water pollution.
b. the depletion of most soil nutrients.
c. the restoration of the soil’s normal inhabitants.
d. increased air pollution.
e. none of these.
Answer: d
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A scientific theory is:
A. a suggested explanation that accounts for observations. B. a way to organize how we think about a problem. C. a concept that is supported by experimental evidence that explains the facts in an area of study. D. a way to understand a complex system by reducing it to its working parts.
Kinetochore microtubules extend between the spindle poles
a. True b. False
What is the primary function of the endocrine system?
A. Conduction B. Contraction C. Hormonal control of the body D. Protection against disease E. Cell production
The two major cell types are:
a. archaea and bacteria. b. archaea and prokaryotes. c. prokaryotes and eukaryotes. d. eukaryotes and archaea. e. eukaryotes and bacteria.