Answer the following questions true (T) or false (F)
1. Traveler's diarrhea causes watery diarrhea and is primarily caused by consuming contaminated food, water, or ice for Americans who travel in Europe.
2. The EPA is responsible for ensuring the safety of our water supply.
3. Pasteurization, canning, and irradiation are safe, short-term and long-term food preservation methods.
1. FALSE
2. TRUE
3. FALSE
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What government agency is involved in conducting product recalls?
A. USDA B. CDC C. EPA D. FDA
Which of the following statements is true?
A. Most enzymes have names that end with -ase. B. Enzymes can function under a wide range of environmental conditions, such as pH and temperature. C. Enzymes can function as electrolytes. D. After an enzyme catalyzes a chemical reaction, it can no longer function.
What symptom sometimes accompanies primary HIV infection?
a. a skin rash b. a very high fever c. a flu-like syndrome d. a Candida infection e. bloody diarrhea
The process of genetic modification involves
A. preserving organisms until they can be treated to render them harmless. B. altering the DNA of an organism to bring about specific changes in its seeds or offspring. C. distinguishing harmful microorganisms from harmless ones. D. treating organisms with radiation and then combining or breeding them for desired effects.