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Alex
3 years ago
15

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

Biology
2 answers:
balandron [24]3 years ago
6 0

Answer:

single-celled organisms

Explanation:

Ira Lisetskai [31]3 years ago
4 0

Answer:

cyanobacteria.. single celled organisms

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Each have adapted in very similar ways to similar habitats.

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