A fire fighter can lose up to ___ in an hour of strenuous exertion.
a. 1.5 quarts
b. 1 quart
c. .5 quart
d. 2 quarts
Answer: d. 2 quarts
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If food-borne disease transmission does not require growth of the microorganism after ingestion because the toxic substances are already present in the food as a result of previous growth, then it is referred to as a food-borne ________.
Fill in the blank(s) with the appropriate word(s).
All are true of oyster reefs except
a. they are oriented perpendicular to currents. b. they are concentrated in lower salinity areas. c. they are important habitats for other organisms. d. they are adversely affected by rapid changes in salinity. e. they are increasing in the Chesapeake Bay.
The quaint northern resort town of Ejemplo Lago, known for its ice fishing and maple syrup production, has experienced an unusually hot summer, followed by a temperate fall. By December 1, the eponymous lake has still not frozen over; in fact, the temperature has not fallen below 4°C. Other than being forced to cancel the annual Fish and Flapjacks Charity Breakfast, what other effects can the residents of Ejemplo Lago expect?
a. a reduction in subsurface algal growth b. increase in spring lakeside plant growth c. an overall reduction in biodiversity d. a significant reduction of migratory birds
The purification and elucidation of the primary auxin's chemical structure were accomplished by:
a. Charles Darwin. b. Francis Darwin. c. Frits Went. d. Kenneth Thimann. e. F. Skoog.