The plant hormone that promotes fruit ripening is:
a. auxin
b. gibberellin
c. cytokinin
d. systemin
e. ethylene
e
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Which latitude will have the most hours of daylight on the summer solstice?
a. 0º (the equator) b. 30º north c. 45º north d. 60º north
The first life-related and carbon-based
molecule was synthesized in vitro by a German chemist. What was that molecule?
a. starch b. fructose c. acetaldehyde d. urea e. rubisco
In cladistic analysis, a researcher will group species based on similarities derived from common ancestry
a. true b. false
Inhalation anthrax is frequently fatal even with antibiotic therapy because
A) Bacillus anthracis is resistant to a wide range of antibiotics. B) it is transmitted as endospores. C) the anthrax toxin triggers necrosis and severe edema of the lungs. D) the bacteria are enclosed within a biofilm that antibiotics cannot penetrate. E) the dying cells release lipid A, triggering a severe inflammatory response.