Which of the following organisms have existed on Earth for the longest period of time? O single-celled organisms O multicellular organisms O dinosaurs O mammals

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asked Dec 10, 2022 136k views

23 votes

Which of the following organisms have existed on Earth for the longest period of time?

O single-celled organisms
O multicellular organisms
O dinosaurs
O mammals

Biology
high-school

Killogre asked

by Killogre

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2 Answers

9 votes

Answer:

cyanobacteria.. single celled organisms

Gionni answered Dec 12, 2022

by Gionni

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12 votes

Answer:

single-celled organisms

Step-by-step explanation:

Rexroxm answered Dec 16, 2022

by Rexroxm

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