Cytotoxic T cells kill invaders in a manner similar to which of the following?
A) B cells
B) dendritic cells
C) macrophages
D) NK cells
D
Environmental & Atmospheric Sciences
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Which of the following areas is most suitable for wind power generation?
A. on high mountain peaks B. in the doldrums C. along coastlines D. in the horse latitudes
Environmental & Atmospheric Sciences
The term ecumene refers to what?
A. uninhabited areas of the earth's surface B. the permanently inhabited areas of the earth's surface C. the study of ecology D. how population pressures affect the natural environment
Environmental & Atmospheric Sciences
More solar radiation per m2 reaches the poles than tropics.
a. true b. false
Environmental & Atmospheric Sciences
Plants are divided into two major groups:a
coniferous and deciduous. b. vascular and spore-bearing. c. angiosperms and gymnosperms. d. vascular and nonvascular. e. seedless and non-seedless
Environmental & Atmospheric Sciences