Which of the following gives the correct order for the wavelengths of portions of the electromagnetic spectrum?
A) radio > infrared > ultraviolet
B) radio > ultraviolet > infrared
C) ultraviolet > infrared > radio
D) ultraviolet > radio > infrared
A
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The volcanic islands visible here formed as a result of a mantle plume. Which volcanic island is still forming?
A) Volcano A B) Volcano B C) Volcano C
Which of the following types of solid is most likely to have a low, but well defined, melting point?
A) amorphous B) ionic C) molecular D) network covalent
In which of the following ways do bile salts remove excess cholesterol?
A) Bile salts convert LDL to HDL. B) Cholesterol is converted to bile salts which are then eliminated in the feces. C) both a and b D) neither a nor b
Organisms which feed only on other animals are called ________
A) autotrophic B) bacteriovores C) carnivores D) herbivores E) omnivores