Which preservative is used to prevent the growth of mold in dried fruits, juices, and wines?
A) Nitrites
B) Sulfite
C) Salt
D) Ethylene oxide
Answer: B) Sulfite
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The condition occurring when an organism has a 2n + 1 chromosome composition is known as
a. monosomy. b. trisomy. c. diploid. d. haploid. e. both trisomy and haploid.
The operator of the lactose operon in E. coli is located:a
between the promoter and the TATA box. b. upstream of the promoter. c. between the promoter and the structural genes. d. among the structural genes. e. anywhere on the chromosome
Recall Stiling and Drake's experiments using chambers with elevated CO2. What are the implications of their experiment for farmers in the coming decades, if CO2 levels rise as predicted?
A. Farmers will see lower crop productivity and nutrition, in addition to more insect damage. B. Farmers will see higher crop productivity and less insect damage, but the crops will be less nutritious. C. Farmers will see higher crop productivity, but there will be more insect damage and the crops will be less nutritious. D. Farmers will see higher crop productivity and nutrition, but there will be more insect damage.
Pelvic inflammatory disease is characterized by all the following except
A) a clear set of signs and symptoms that make diagnosis straightforward. B) can be caused by several types of bacterial pathogens. C) treatment with antibiotic therapy. D) increased risk for ectopic pregnancy. E) inflammation, swelling, or abscesses in the internal reproductive organs.