The purpose of the voyage of the HMS Beagle was to
A. survey the living creatures on islands only.
B. map navigational routes around the coasts of South America.
C. discover new routes to the New World.
D. search for gold.
Answer: B
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Which of the following processes does not generate genetic variation during sexual reproduction?
A. Crossing over B. Random fertilization C. Independent assortment D. All of the processes above generate genetic variation
If an athlete is burning glucose only, what is the ratio of oxygen consumed to carbon dioxide that will be produced?
C6H12O6 + 6O2 ? 6CO2 + 6H2O A. 1:1 B. 1:6 C. 2:1 D. 1:2 E. 6:1
Lignified, tube-like structures that branch throughout the body of some plants, conducting water and
solutes, are called ____.
a. vascular tissues b. apical meristems c. root systems d. rhizomes e. shoot systems
If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development?
A) a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract B) a drug to treat diabetes that irreversibly inhibits an enzyme in the metabolic pathway to synthesize glucose C) a compound that acts as a competitive inhibitor for a digestive enzyme produced only in the presence of certain foods D) a compound that inhibits enzymes by significantly changing the pH throughout the body