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| - Abiogenesis or spontaneous generation, after asexual and sexual reproduction, is the third most popular way through which living beings (and maybe ghosts) come into existence, by simply forming from brute matter.
- abiogenesis n abiogenesis, spontaneous generation Syn: abiogenese Categoria:Interlingua
- Abiogenesis is the emergence of life from non-life. Scientists don't fully understand yet how Abiogenesis happened which gives chances for believers to introduce God of the gaps arguments. The basic idea is that:-
- In the natural sciences, abiogenesis (, ) or biopoesis is the theory of how life on Earth could have arisen from inanimate matter. It should not be confused with evolution, which is the study of how groups of already living things change over time, or with cosmology, which covers how the universe might have arisen. Most amino acids, often called "the building blocks of life", can form via natural chemical reactions unrelated to life, as demonstrated in the Miller–Urey experiment and similar experiments, which involved simulating the conditions of the early Earth, in a scientific laboratory. In all living things, these amino acids are organized into proteins, and the construction of these proteins is mediated by nucleic acids. Which of these organic molecules first arose and how they formed
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| abstract
| - Abiogenesis is the emergence of life from non-life. Scientists don't fully understand yet how Abiogenesis happened which gives chances for believers to introduce God of the gaps arguments. The basic idea is that:- 1.
* In the primitive Earth various chemical reactions took place, this could have happened anywhere with an energy source. These reactions might have taken place in the oceans under the influence of sunlight, round hydrothermal vents or in caves. 2.
* Eventually by chance self-replicating molecules formed, these molecules were much simpler than modern organic molecules. 3. 1.
* The probability of any individual atom becoming part of a self-replicating molecule by chance was unimaginably small. 4. 2.
* Unimaginably vast numbers of atoms and molecules were reacting chemically with each other. 5. 3.
* The probability that somewhere among these vast numbers of chemical reactions self-replication would develop high enough so that it could happen. 6.
* Self-replicating molecules proliferated, some replicated more successfully than others, replication was sometimes imperfect and new types of self-replicating molecules emerged. 7.
* Natural selection and evolution started, more efficient self-replicators out competed others. 8.
* Systems of self-replicating molecules evolved with individual molecules combining symbiotically to help the whole system replicate. 9.
* Over very long periods of time systems of self-replicating molecules evolved to become living organisms.
- In the natural sciences, abiogenesis (, ) or biopoesis is the theory of how life on Earth could have arisen from inanimate matter. It should not be confused with evolution, which is the study of how groups of already living things change over time, or with cosmology, which covers how the universe might have arisen. Most amino acids, often called "the building blocks of life", can form via natural chemical reactions unrelated to life, as demonstrated in the Miller–Urey experiment and similar experiments, which involved simulating the conditions of the early Earth, in a scientific laboratory. In all living things, these amino acids are organized into proteins, and the construction of these proteins is mediated by nucleic acids. Which of these organic molecules first arose and how they formed the first life is the focus of abiogenesis. In any theory of abiogenesis, two aspects of life have to be accounted for: replication, and metabolism. The question of which came first gave rise to different types of theories. In the beginning, metabolism-first theories (Oparin coacervate) were proposed, and only later thinking gave rise to modern, replication-first approach. In modern, still somewhat limited understanding, the first living things on Earth are thought to be single cell prokaryotes (which lack a cell nucleus), perhaps evolved from protobionts (organic molecules surrounded by a membrane-like structure). The oldest ancient fossil microbe-like objects are dated to be 3.5 Ga (billion years old), approximately one billion years after the formation of the Earth itself. By 2.4 Ga, the ratio of stable isotopes of carbon, iron and sulfur shows the action of living things on inorganic minerals and sediments and molecular biomarkers indicate photosynthesis, demonstrating that life on Earth was widespread by this time. The sequence of chemical events that led to the first nucleic acids is not known. Several hypotheses about early life have been proposed, most notably the iron-sulfur world theory (metabolism without genetics) and the RNA world hypothesis (RNA life-forms).
- Abiogenesis or spontaneous generation, after asexual and sexual reproduction, is the third most popular way through which living beings (and maybe ghosts) come into existence, by simply forming from brute matter.
- abiogenesis n abiogenesis, spontaneous generation Syn: abiogenese Categoria:Interlingua
- Abiogenesis is the emergence of life from non-life. Scientists don't fully understand yet how Abiogenesis happened which gives chances for believers to introduce God of the gaps arguments. The basic idea is that:- 1.
* In the primitive Earth various chemical reactions took place, this could have happened anywhere with an energy source. These reactions might have taken place in the oceans under the influence of sunlight, round hydrothermal vents or in caves. 2.
* Eventually by chance self-replicating molecules formed, these molecules were much simpler than modern organic molecules. 3. 1.
* The probability of any individual atom becoming part of a self-replicating molecule by chance was unimaginably small. 4. 2.
* Unimaginably vast numbers of atoms and molecules were reacting chemically with each other. 5. 3.
* The probability that somewhere among these vast numbers of chemical reactions self-replication would develop was high. 6.
* Self-replicating molecules proliferated, some replicated more successfully than others, replication was sometimes imperfect and new types of self-replicating molecules emerged. 7.
* Natural selection and evolution started, more efficient self-replicators out competed others. 8.
* Systems of self-replicating molecules evolved with individual molecules combining symbiotically to help the whole system replicate. 9.
* Over very long periods of time systems of self-replicating molecules evolved to become living organisms.
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