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Per IUCN (2004), how many plant and animal species had been described in total?
AAbout 0.5 million
BOver 1.5 million
CAbout 7 million
DAbout 20 million
Answer & Solution
Correct answer: B. Over 1.5 million
IUCN put the number of described plant and animal species at slightly more than 1.5 million in 2004.
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