Which of the following is not a characteristic of Class Mammalia?
A) They are warm-blooded.
B) They lay eggs.
C) They breathe air.
D) The females of each species have mammary glands.
E) They have hair or fur at some point during development.
B
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The fact that a thermometer "takes its own temperature" illustrates
A) thermal equilibrium. B) energy conservation. C) the difference between heat and thermal energy. D) the fact that molecules are constantly moving.
What is a possible consequence of overpumping of groundwater?
A. along the coast, pulling saltwater into wells that were previously fresh B. inflation of the aquifer due to an increase in porosity C. flooding due to rising groundwater levels D. All of these.
Water in an artesian well ____
a. erupts in steam and hot water b. rises above the water table c. slowly seeps naturally onto the surface d. shoots out onto the ground surface in a natural fountain
Widely spaced isobars often indicate ________
A) light winds B) high winds C) cyclonic winds D) variable winds