First signs of life
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Keywords

life
early Earth
prokaryotes
and eukaryotes

How to Cite

Santiago-Ramírez, M. I. (2017). First signs of life. Revista Umbral (in Process), (1), 13–20. Retrieved from https://revistas.upr.edu/index.php/umbral/article/view/8465

Abstract

The presence of life on its surface makes the Earth unique. No evidence of living organisms exists in any other part of our solar system even though the Earth was formed in the same giant clouds of gas and dustthat formed the Sun, Mars, and Venus and the rest of the solar system over 4600 million years ago. Why is the Earth so special? Although different hypotheses exist, no one knows how life originated. The earliest life forms on Earth probably resembled modern bacterial cells.
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En la Revista Umbral los artículos son evaluados por el proceso de revisión de pares doble ciego (blind peer review) y publicados con la licencia Creative Commons Atribución 4.0. La Revista está comprometida con el acceso abierto al conocimiento, haciendo disponible sus artículos en texto completo de manera pública y libre.

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