Which of the following is true of electrolytes?
A) All electrolytes have water as a solvent.
B) All electrolytes contain cations and anions.
C) both a and b
D) neither a nor b
B
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Nations hold sovereignty over resources, economic activity, and environmental protection within their ____________
____________ ____________. Fill in the blank(s) with the appropriate word(s).
At the height of the Great Ice Age, the present desert regions of southwestern United States ____
A)were covered with continental ice sheets B)were drier than modern day conditions C)had large lakes form in intermontane basins D)were tropical rainforest environments E)were covered with valley glaciers
Class switch recombination does which of the following?
A) creates a change at a single nucleotide B) copies nucleotide sequences from a pseudogene V into the V(J)D C) swaps exons of the constant region between highly repetitive regions D) all of these
Some of Earth's most beautiful mountains are ________, including Mt. Kilimanjaro in Tanzania, Mt. Shasta in California, Mt. Rainier in Washington, and Mt. Fuji in Japan.
A. cinder cones B. shield volcanoes C. calderas D. oceanic seamounts E. stratovolcanoes