When a paper clip is brought near a bar magnet, domains in the paper clip are
A. repelled by the bar magnet.
B. induced into alignment.
C. both of these
D. neither of these
Answer: B
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Primary producers in hydrothermal vent communities are ________
A) algae B) eyeless shrimp C) giant clams D) Riftia tubeworms E) sulfur-oxidizing archaea
The acquired immune cells that target pathogens in bodily fluids are
A) B cells. B) T cells. C) antibodies. D) antigens.
In societies where women receive less formal education and hold fewer legal rights than do men, they are generally expected to have a large number of children, and men regard it as a sign of their own virility
Indicate whether the statement is true or false.
The collision efficiency:
A) is approximately one regardless of drop size. B) is affected by the compression of air just below the collector drop. C) is governed primarily by the temperature of the air. D) is highest for droplets of equal or nearly equal size.