Of the following types of life forms, which was likely to have occurred the earliest?
A)Bacteria
B)Reptiles
C)Mammals
D)Viruses
E)Fish

Name: Of the following types of life forms, which was likely to have occurred the earliest? A)Bacteria B)Reptiles C)Mammals D)Viruses E)Fish
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Question

Quizplus · Accepted Answer

Viruses, which lack nuclei and many 'modern day' cell parts, are believed to be early precursors to cells. Bacteria likely evolved next, followed by eukaryotic organisms.

Of the Following Types of Life Forms, Which Was Likely