What does the figure suggest about patterns of biodiversity for particular groups of organisms?
A) Species diversity is highest at the equator.
B) Species diversity is highest at the poles.
C) Climatic influences are most important in determining areas of higher diversity.
D) Diversity patterns are unpredictable.
C
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Exposing E. coli to calcium ions and DNA, then incubating the culture at low temperatures followed by heat shocking
induces ____.
a. artificial transformation b. a double crossover c. a single crossover d. DNA replication e. infection
_____ increases the risk of death for an American child under the age of two
a. The presence of an unrelated adult male only b. The absence of a biological father only c. The presence of an unrelated adult female d. Both the absence of a biological father and the presence of an unrelated adult male
The development of hypertension in humans is associated with obesity, smoking, age, and kidney disease.
Answer the following statement true (T) or false (F)
Which of the following plant hormones stimulates development of an abscission zone in the leaf petiole?
A. ethanol B. gibberellins C. abscisic acid D. auxin E. ethylene