Lactose is a disaccharide of glucose and galactose, and its digestion requires the actions of the enzyme lactase
If lactose is eaten as part of the diet but is not digested by lactase, this sugar is then metabolized by bacteria in the intestine, leading to the symptoms of lactose intolerance. Lactose intolerance, therefore, results from a(n)
A) lack of dehydration synthesis of lactose. B) inability of the body to produce lactose.
C) low blood lactose level. D) lack of hydrolysis of lactose.
D
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Many factors are believed to reduce songbird breeding success in fragmented habitats. Select the
exception.
a. brood parasitism by cowbirds b. nest predation by blue jays c. lack of necessary habitat types d. nest predation by domestic cats e. increased connections between habitats
During the Uruguay round of GATT negotiations, the United States sought to
a. liberalize trade in agricultural products. b. increase the number of quotas on finished goods. c. liberalize the use of embargoes. d. tighten the role of GATT in excluding services.
Pioneers of the American West used the plant called
horsetails a. as pot scrubbers. b. as sandpaper. c. for decoration. d. for kindling. e. for food.
For a linear probability model all of the following are true except for which condition?
A. You can conduct causal analysis. B. You can calculate marginal effects of control variables. C. You can conduct hypothesis testing. D. The outcome can take a large range of values.