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The timeline of the evolutionary history of life represents the current scientific theory outlining the major events during the development of life on planet Earth. Dates in this article are consensus estimates based on scientific evidence, mainly fossils.
- Caveasphaera
Main page; Contents; Current events; Random article; About...
- Ediacaran Biota
The Ediacaran (/ ˌ iː d i ˈ æ k ər ə n /; formerly Vendian)...
- Timeline of Human Evolution
A secondary palate enables the animal to eat and breathe at...
- Last Universal Common Ancestor
A tree of life, like this one from Charles Darwin's...
- Water
Water covers about 71% of Earth's surface. The origin of...
- Caveasphaera
In biology, abiogenesis (from Ancient Greek ἀ-(a-) 'not', βῐ́ος (bíos) 'life', and γένεσις (génesis) 'origin'), or the origin of life, is the natural process by which life has arisen from non-living matter, such as simple organic compounds.
The term Abrahamic religions (and its variations) is a collective religious descriptor for elements shared by Judaism, Christianity, and Islam. [9] It features prominently in interfaith dialogue and political discourse, but also has entered Academic discourse. [10] [11] However, the term has also been criticized to be uncritically adapted. [10]
- Overview
- Hypotheses of origins
1.The origin of life is a result of a supernatural event—that is, one irretrievably beyond the descriptive powers of physics, chemistry, and other science.
2.Life, particularly simple forms, spontaneously and readily arises from nonliving matter in short periods of time, today as in the past.
3.Life is coeternal with matter and has no beginning; life arrived on Earth at the time of Earth’s origin or shortly thereafter.
4.Life arose on the early Earth by a series of progressive chemical reactions. Such reactions may have been likely or may have required one or more highly improbable chemical events.
Hypothesis 1, the traditional contention of theology and some philosophy, is in its most general form not inconsistent with contemporary scientific knowledge, although scientific knowledge is inconsistent with a literal interpretation of the biblical accounts given in chapters 1 and 2 of Genesis and in other religious writings. Hypothesis 2 (not of course inconsistent with 1) was the prevailing opinion for centuries. A typical 17th-century view follows:
[May one] doubt whether, in cheese and timber, worms are generated, or, if beetles and wasps, in cow’s dung, or if butterflies, locusts, shellfish, snails, eels, and suchlike be procreated of putrefied matter, which is apt to receive the form of that creature to which it is by the formative power disposed. To question this is to question reason, sense, and experience. If he doubts of this, let him go to Egypt, and there he will find the fields swarming with mice begot of the mud of the Nylus [Nile], to the great calamity of the inhabitants.
Perhaps the most fundamental and at the same time the least understood biological problem is the origin of life. It is central to many scientific and philosophical problems and to any consideration of extraterrestrial life. Most of the hypotheses of the origin of life will fall into one of four categories:
1.The origin of life is a result of a supernatural event—that is, one irretrievably beyond the descriptive powers of physics, chemistry, and other science.
2.Life, particularly simple forms, spontaneously and readily arises from nonliving matter in short periods of time, today as in the past.
3.Life is coeternal with matter and has no beginning; life arrived on Earth at the time of Earth’s origin or shortly thereafter.
4.Life arose on the early Earth by a series of progressive chemical reactions. Such reactions may have been likely or may have required one or more highly improbable chemical events.
Hypothesis 1, the traditional contention of theology and some philosophy, is in its most general form not inconsistent with contemporary scientific knowledge, although scientific knowledge is inconsistent with a literal interpretation of the biblical accounts given in chapters 1 and 2 of Genesis and in other religious writings. Hypothesis 2 (not of course inconsistent with 1) was the prevailing opinion for centuries. A typical 17th-century view follows:
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May 9, 2018 · In the 1950s the iconic Miller-Urey experiment, which zapped a mixture of water and simple chemicals with electric pulses (to simulate the impact of lightning), demonstrated that amino acids, the ...
- Jack Szostak
- 2018
Emergence and complexity, heterotrophic hypothesis, Oparin–Haldane, origin of life, prebiotic evolution, primordial autotrophy, spontaneous generation Definition In evolutionary biology, the phrase “origin of life” refers to the first appearance of living entities.
József Molnár: The March of Abraham. The March of Abraham, painting by József Molnár, 19th century; in the Hungarian National Gallery, Budapest. Abraham, (flourished early 2nd millennium bc ), First of the Hebrew patriarchs, revered by Judaism, Christianity, and Islam.
