The fossil record indicates the evolution of life on Earth from unicellular to multicellular organisms, showing increasing biodiversity over time.
The fossil record suggests that unicellular organisms were the first life forms on Earth, appearing approximately 3.5 billion years ago.
Evidence shows that multicellular life evolved after unicellular life, with the appearance of eukaryotic cells around 2.1 billion years ago.
These findings indicate a pattern of increasing biodiversity over time based on the fossil record and genetic evidence.
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