Biologists have described about _____ species of eukaryotic organisms, of which about _____ are animals. The majority of eukaryotic species are _____.

A)1)8 million; 1.3 million; insects
B)500,000; 300,000; insects
C)1)8 million, 1.3 million; vertebrates
D)30 million; 500,000; plants
E)1)8 million; 500,000; plants