What best represents the transfer of seeds across the ocean or by animals?
A. extinction
B. migration and dispersal
C. natural selection
D. reproductive success
E. plant succession
B
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Why do ethers have lower boiling points than that of an alcohol of the same molecular weight?
A. Ethers do not have hydrogens. B. Ethers cannot hydrogen bond to other ethers. C. Ethers are more flammable and vaporize more easily. D. Ethers have higher boiling points than alcohols. E. all of the above
Which of the following combinations should favor ductile rather than brittle deformation?
a) high temperature and high confining pressure b) low confining pressure and low temperature c) high confining pressure and low temperature d) high temperature and low confining pressure e) none of the above combinations favor ductile deformation
The practice of corporations controlling all phases of production is called
A) maquiladoras. B) complete manufacturing. C) horizontal integration. D) vertical integration. E) top-down manufacturing.
Circular orbital motion in waves will occur in ________ water
A) still B) deep C) shallow D) evaporating