Which of the following involves an increase in entropy?
A) hydrolysis
B) reactions that join monomers
C) polymerization
D) chemical evolution
Answer: A
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The lightly shaded countries have diversified export bases. The darkly shaded countries depend on ________ for foreign exchange (export earnings)
A) one or two commodities B) the service sector C) energy resources D) tourism E) both a and b
Chromatids are
a. attached at the centriole. b. a pair of chromosomes, one from the mother and one from the father. c. attached at their centromeres. d. identical until crossing over occurs. e. attached at their centromeres and are identical until crossing over occurs.
The process by which homologous chromosomes exchange genetic material
A. is crossing over. B. is random fertilization. C. occurs only in bacteria. D. occurs only in animals. E. is independent assortment.
An increase in the rate of oxygen production by algae would be accompanied by a comparable increase in the rate of production of which of the following substances?
a. C6H12O6 b. CO2 c. CH4 d. NH3 e. H2O