The plant hormone that promotes fruit ripening is:

a. auxin
b. gibberellin
c. cytokinin
d. systemin
e. ethylene


e

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

In cladistic analysis, a researcher will group species based on similarities derived from common ancestry

a. true b. false

Biology & Microbiology

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.

Biology & Microbiology