The type of microscope that uses two or more glass lenses to refract light in order to enlarge an image
is a(n)
a. compound light microscope.
b. electron microscope.
c. transmission electron microscope.
d. scanning electron microscope.
e. scanning tunneling microscope.
A
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The greatest drop in blood pressure occurs in the
a. arteries. b. arterioles. c. capillaries. d. venules. e. veins.
An ecologist spent a year studying the population dynamics of a species of duck on a lake. At the beginning of the year, there were 86 adults
Of these, 16 adults left the lake, 12 adults arrived on the lake from elsewhere, 76 chicks hatched from eggs, 24 chicks survived to become adults, and 8 adults died. How many individuals emigrated? A) 8 B) 12 C) 16 D) 24
Convergent evolution occurs when two species living in
A. different areas evolve similarities through natural selection acting on those characteristics. B. the same area become reproductively isolated. C. different areas become reestablished and are able to reproduce. D. the same area are competing for the same resource thus causing one to evolve away from the other.
Quantitative measures meant to summarize and interpret properties of a dataset are instances of:
A. descriptive statistics. B. pivot tables. C. outliers. D. linear regressions.