Blood pressure is highest in the _____
a. arterioles
b. capillaries
c. arteries
d. venules
e. veins
ANSWER: c
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The promotion of the lactose operon in bacteria is
a. activated by a repressor protein. b. independent of glucose concentration. c. activated by lactose binding. d. regulated by RNA polymerase. e. regulated by mRNA.
A study of a cohort of 1,000 animals showed a
90 percent death rate per individual in the first year, 10 percent the second year, and 5 percent the third year. This population's survivorship is a. type I. b. type II. c. type III. d. type I the first year and type II in years two and three. e. type I the first year, type II the second year, and type III the third year
Which mechanism maintains the biological ability of populations to interbreed and can thus prevent evolutionary divergence of populations?
What will be an ideal response?
How does taxonomy assist biologists?
A) by providing easily remembered scientific names for organisms B) by categorizing diverse items into smaller and smaller numbers of groups C) by reducing life to its smallest common denominator, the cell D) all of the above