As per your syllabus, the number of species currently known and described on Earth ranges between approximately what values?
A1.7 to 1.8 million
B1 to 2 billion
C100 thousand
D100 to 200
Answer & Solution
Correct answer: A. 1.7 to 1.8 million
As per your syllabus, known species are 1.7–1.8 million (with many more undiscovered).
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