When did the earliest organisms appear on earth?
multipleQAs
When is the earliest time that the earliest organisms possibly appear on earth? When is the latest time that the earliest organisms possibly appear on earth? When did the earliest organisms appear on earth that we have direct evidence for?
4.54 billion years ago 4.5 billion years
3.77 billion years ago
3.465-billion-year 3.465-billion-year-old
Earliest known life forms
earliest organism earth
Earliest known life forms Evolutionary history of life List of longest-living organisms Timeline of the evolutionary history of life Last universal common ancestor Abiogenesis History of Earth Evolution of sexual reproduction Evolution of photosynthesis Multicellular organism
For longest lifespans, see List of longest-living <b>organisms</b>. Putative fossilized 
microorganisms found near hydrothermal vents. Evidence of possibly the <b>oldest</b> 
forms of life on <b>Earth</b> have been found in hydrothermal vent precipitates. The 
<b>earliest</b> known life forms on <b>Earth</b> are putative fossilized microorganisms found in
&nbsp;... The evolutionary history of life on <b>Earth</b> traces the processes by which living and 
fossil <b>organisms</b> evolved, from the <b>earliest</b> emergence of life to the present. These nematodes were believed to be the <b>oldest</b> living multicellular animals on 
<b>Earth</b>. This Judean date palm sprouted from a 2,000-year-old seed. This timeline of the evolutionary history of life represents the current scientific 
theory outlining ... The similarities between all present day <b>organisms</b> indicate the 
presence of a common ancestor from which all known ... The <b>first</b> known mass 
extinction in <b>earth&#39;s</b> history was the Great Oxygenation Event 2.4 billion years ago
. LUCA is not thought to be the <b>first</b> life on <b>Earth</b> but only one of many <b>early</b> 
<b>organisms</b>, all the others becoming extinct. While there is no specific fossil 
evidence of&nbsp;... The <b>Earth</b>, 4.5 billion years ago, was at <b>first</b> inhospitable to any living <b>organisms</b>. 
Based on numerous observations and studies of the geological time-scale, the&nbsp;... A difficulty with the metabolism-<b>first</b> scenario is finding a way for <b>organisms</b> to 
evolve. Without the ability to&nbsp;... The evolution of sexual reproduction describes how sexually reproducing 
animals, plants, fungi ... In some lines of descent from the <b>earliest organisms</b>, the 
diploid stage of the sexual ... &quot;Cell evolution and <b>Earth</b> history: Stasis and 
revolution&quot;. The evolution of photosynthesis refers to the origin and subsequent evolution of 
photosynthesis ... The <b>first</b> photosynthetic <b>organisms</b> probably evolved <b>early</b> in 
the evolutionary history of life and most likely ... The geological record indicates 
that this transforming event took place <b>early</b> in <b>Earth&#39;s</b> history, at least 2450–2320
&nbsp;... Multicellular <b>organisms</b> are <b>organisms</b> that consist of more than one cell, in 
contrast to ... The <b>first</b> evidence of multicellularity is from cyanobacteria-like 
<b>organisms</b> that lived 3–3.5 billion years ago. To reproduce, true ... Kingdoms and 
Domains: An Illustrated Guide to the Phyla of Life on <b>Earth</b> ([4th ed.]. ed.). 
Amsterdam:&nbsp;...
4280 Ma
Timeline of the evolutionary history of life