The most common infectious disease of humans is
A. the common cold.
B. dental caries.
C. hepatitis A.
D. halitosis
B.
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A genetic _____ indicates the distances between gene loci measured in terms of the frequency of recombination.
A. map B. profile C. pedigree D. clone E. karyotype
About _____ of the blood circulated through the body with each heartbeat passes through the kidneys for filtration
A. 10% B. 20% C. 30% D. 40% E. 50%
Which is the most diverse group of seedless vascular plants?
a) the liverworts b) the horsetails c) the club mosses d) the ferns
A camping party got lost in the wilderness for several days. They had sufficient food but misplaced their matches and could drink only the water from the clear lakes and streams in the area without boiling it. Very quickly everyone developed diarrhea
that lasted the entire 8 days until they were rescued. Which type of pathogen was probably responsible? A) protozoan B) prion C) vector D) fungus