Biology
Biology, 04.12.2019 07:31, AaronEarlMerringer

In sedimentary rock from over 2.7 million years ago, the presence of cellular membrane components indicate that at least unicellular life was present in abundance at that time. what biomolecular structure would indicate the presence of a cell enclosed in a membrane in the fossilized rock? a) dna and rna b) lipids and cholesterols c) proteins and nucleic acids d) chloroplasts and mitochondria

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