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Pond5. (n.d.). Electrical Sparks Vídeos de archivo ~ Vídeos de archivo libres de derechos. Pond5. https://www.pond5.com/es/stock-footage/tag/electrical-sparks/

123rf. (n.d.). Soil is a natural clay minerals are naturally many species suitable for planting. 123RF. https://www.123rf.com/photo_59268833_soil-is-a-natural-clay-minerals-are-naturally-many-species-suitable-for-planting.html

thoughtco. (n.d.). Early Life Theories - Hydrothermal Vents. ThoughtCo. https://www.thoughtco.com/early-life-theory-of-hydrothermal-vents-1224529

Arana, M. (2019). ResearchGate | Find and share research. ResearchGate; ResearchGate. https://researchgate.net

Sanchis, A. (2022, September 8). El glaciar “del juicio final” se aferra con uñas y dientes a la vida. Obviamente no son buenas noticias. Magnet. https://magnet.xataka.com/que-pasa-cuando/glaciar-juicio-final-se-aferra-unas-dientes-a-vida-obviamente-no-buenas-noticias

Zientzia Plaza, B. (2014, January 31). La hipótesis de la panspermia supera un nuevo test. Cuaderno de Cultura Científica. https://culturacientifica.com/2014/01/31/la-hipotesis-de-la-panspermia-supera-un-nuevo-test/

Tarrant, A. (2018, February 23). Adventures in “Spontaneous Generation” – The Tarrant Lab. Woods Hole Oceanographic Institution. https://www2.whoi.edu/site/tarrantlab/adventures-in-spontaneous-generation/

de, C. (2004, November). proceso natural por el cual la vida surgió a partir de la no existencia de esta. Wikipedia.org; Wikimedia Foundation, Inc. https://es.wikipedia.org/wiki/Abiog%C3%A9nesis

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Created by: Aristoteles

Accepted by: Rene Descartes and Isaac Newton (no microosganism)

Main ideal: Life appears in a spontaneous way from inanimate matter.

Thought that if they left specific things in a bowl, they would create an animal, like a mouse. It was believed until XIX century.

Refused by: Redi (1668), Spallanzani (1759) and Pasteur (1861) experiments

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3 billion years ago, the Sun was third less luminous than right now.
Because of that, the Earth was covered by ice that was on top of seas and oceans.

This ice, may have protected fragile organic compounds from the ultraviolet light and destruction from impacts of asteroids.

Thanks to that, these organic compounds could have had key reactions in order to survive and create more complex life.

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Espada, Blanca. “¿Cuál Es El Origen de La Vida? Principales Teorías.” Okdiario.com, 7 May 2021, okdiario.com/curiosidades/teorias-origen-vida-414383. Accessed 15 Sept. 2022.

Got questions. “¿Qué Es La Teoría de La Abiogénesis? ¿Cuál Es La Definición de Abiogénesis? | GotQuestions.org/Espanol.” GotQuestions.org Español, www.gotquestions.org/Espanol/abiogenesis.html.

Méndez, Juan Luís. “La Teoría Endosimbiótica.” Naturaleza Y Turismo, 1 July 2015, www.asturnatura.com/articulos/organulos-energeticos/autonomia-mitocondria-cloroplasto.php.

Editorial Etecé. (2019). Teoría de la Generación Espontánea - Concepto y refutación. Concepto.de. https://concepto.de/teoria-de-la-generacion-espontanea/

Report, S. (2015, April 13). 7 theories on the origin of life. The Daily Star. https://www.thedailystar.net/science/7-theories-the-origin-life-77163

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According to the organic chemist Alexander Graham Cairns-Smith, life could have been originated in clay.

Complex organic molecules emerged gradually from clay cristals and silt. This surfaces might have helped to concentrate the compounds and organize them in patterns similar to gens.

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7 Theories for Origins of life | How life started on earth

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By: Lynn Margulis in 1967

Idea: Mitochondria and chloroplasts have evolutionate from bacteria that were phagocytosed by an ancestral eukaryotic cell.

Mitochondria appeared 2 billion years ago, from an aerobic bacteria that fromed a symbiotic relationship with an eukaryotic anaerobic cell.

Chloroplasts appeared 1.2 billion years ago, from a symbiotic relationship between phagocytic photosynthetic cells. Theses cells appeared vegetal eukaryotic cells.

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(The Daily Star, 2015) and (Espada, 2021)

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As an electric spark can generate several inorganic molecules with some of the atmosphere’s components, the Miller-Urey experiment tries to prove that a lighting could have created small units of life that made possible the evolution to life as we know it nowadays.

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(The Daily Star, 2015) and (Espada, 2021)

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Stanley Miller developed the deep-sea vent theory, that says that life may have begun at submarine hydrothermal vents.

This vents would have spelled molecules rich in hydrogen that would have concentrated together.

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(de, 2004). (Espada) and (Got questions).

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Life becomes from inorganic molecules and natural evolution.

Completely against Biogenisis which says life can only be created from life.

No Experiment nor scientific support supports this idea, as it has never been seen on natural or artificial place.

Believed it's not naturally possible

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Origin of life becomes from meteorites and asteroids.

Each one had ultra-resistant bacteria that could implant the possibility on Earth.

Considered origin of life on Earth, not of life.