When is the PO2 an especially strong stimulant of the respiratory control center in the brain of healthy individuals?
A. While hypoventilating
B. While free-diving to a coral reef 60 feet below the surface of the sea
C. While running a road race along the shoreline of Vancouver
D. While hyperventilating
E. While climbing to the summit of Mt. Everest
Answer: E
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The minimum lethal concentration (MLC) is the lowest concentration of drug from which organisms fail to recover when removed from the drug.
Answer the following statement true (T) or false (F)
You arrive late to a biological seminar. However, just as you enter the room, you hear the speaker referring to the "amino end" and the "carboxyl end" of a macromolecule. Immediately, you know that they are talking about a:
A. carbohydrate. B. protein. C. lipid. D. DNA.
The main reason why the numbers of black-footed ferrets decreased rapidly is
a. decreased populations of prairie dogs. b. decreased numbers of whitebark pine berries. c. habitat disruptions. d. hunting
Fungi cannot be found growing in nutritionally poor and adverse conditions.
Answer the following statement true (T) or false (F)