Untreated streptococcal pharyngitis may progress to
A) scarlet fever.
B) necrotizing fasciitis.
C) rheumatic fever.
D) scarlet fever or necrotizing fasciitis.
E) scarlet fever or rheumatic fever.
E
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Theoretically, based on the cohesion-tension mechanism, the maximum height for the tallest trees should be about
____.
a. 50 ft b. 130 m c. 6 ft d. 3 m e. 75 m
In normal differentiated somatic cells, telomerase
A) adds material to the ends of chromosomes with each cell division. B) is not expressed and telomere tips erode with each division. C) removes telomere tips with each division. D) repairs double strand breaks in DNA.
When one male ram wins in a fight against another male ram, the winner has greater access to the female rams of the herd and is more likely to pass his genes on to the next generation. This phenomenon is called ______ .
a. natural selection b. gene flow c. genetic drift d. sexual selection
This pancreatic enzyme breaks triglycerides into glycerol and fatty acids
A) maltase B) trypsin C) carboxypeptidase D) lipase