When did the first life originated and what was it?
Evidence suggests that life first evolved around 3.5 billion years ago. This evidence takes the form of microfossils (fossils too small to be seen without the aid of a microscope) and ancient rock structures in South Africa and Australia called stromatolites. Stromatolites are produced by microbes (mainly photosynthesizing cyanobacteria) that form thin microbial films which trap mud; over time, layers of these mud/microbe mats can build up into a layered rock structure - the stromatolite. Stromatolites are still produced by microbes today. These modern stromatolites are remarkably similar to the ancient stromatolites which provide evidence of some of the earliest life on Earth. Modern and ancient stromatolites have similar shapes and, when seen in cross section, both show the same fine layering produced by thin bacterial sheets. Microfossils of ancient cyanobacteria can sometimes be identified within these layers.
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Life originated in the oceans over 3 billion years ago. The oceans were full of many organic molecules and this is where life assembled. According to modern evolutionary theor…ies and the studies of cell development, many scientists have concluded that life originated as small prokaryotic life forms and as bacteria under the water. Some of these cells later evolved into larger organisms, such as fish, and some developed legs where they traveled on land and created terrestrial life.
The study of the origin of life from non-life through natural means is called abiogenesis. Many people reject a natural origin of life due to religious beliefs. In general,… abiogenesis says that, once conditions on Earth were just right, the building blocks of life were able to form. Energy from different sources catalyzed the synthesis of organic molecules from inorganic molecules. Over billions of years, organic molecules such as amino acids, lipids, and nucleic acids formed, creating an organic "soup" in the oceans. These began to assemble to create primitive biological systems. They were the predecessors of cells and could form some simple life functions. Eventually self-replicating molecules such as RNA and DNA originated, although the details of this process are currently unknown. The earliest life forms were single prokaryotic cells that were able to replicate themselves and pass on their genetic information. Eventually, eukaryotic cells arose. They probably evolved from the mutual relationships between prokaryotic cells (look up the endosymbiotic theory). This would explain why eukaryotic organelles such as mitochondria and chloroplasts have their own DNA. Once the first true life forms arose, they were able to diversify relatively quickly into a variety of multicellular organisms (compared to the billions of years it took to assemble a simple living cell). The basic ideas about the origin of life have been established, but most of the details currently remain unknown and are subject to speculation, considering life originated billions of years ago and almost no fossil evidence remains from that time. It has been proven through laboratory experiments (Such as the Miller-Urey experiment) that the building blocks of life can arise naturally. While we are very far from producing true life from scratch, scientists are working hard trying to replicate what could have been the process that occurred over 3 billion years ago in the Earth's oceans.
There are actually quite a few opinions on how exactly lifeoriginated. A very interesting and intriguing concept is the BigBand Theory concept.
It starts the male sex cell, or sperm fuses with the female sex cell, the egg. This then becomes the first cell, or in other words, the first form of life. This single cell th…en divides or multiplies into a bag of cells. After that, it continues the divide and multiply, making it grow in size and slowly looking like a human baby.
in India in the state of haryana and city gurgaon
We have fossils, so to speak, in rocks that are about 3.5 billion years old. Some form of simple prokayote in filamentous strings. Impressions left in sedimentary rock.' St…ill there must have been life before this, but the evidence is implied genetics and not all that firm. Possible a form of replicator; simple genetic replication.
ans2. Possibly associated with the hot waters of an undersea black smoker or other hydrothermal vent. There is energy source, climate, and food supply to support life IF it c…ame along! But as to the biochem - someone better qualified is needed.
There was no ozone layer in the very beginning because the processof photosynthesis had to build it up over a long time. The ozone layer built up starting over 2 billion year…s ago, and wasdense enough (with enough ozone to protect biological organismsfrom lethal UV light) by about 600 million years ago. Prior to thisperiod, life was restricted to the ocean. Source: albany.edu/faculty/rgk/atm101/ozone.htm
On Earth One must remember that God made all things spiritually before He made them physically and placed them upon the earth.
FIFA was founded in Paris on 21 May 1904; the French name and acronym remain, even outside French-speaking countries. The founding members were Belgium, Denmark, France, Holla…nd, Spain, Sweden and Switzerland. It's first president was Robert GuÃ©rin.
It could make a copy of itself
It depends on what u believe in theres the bible and theres science..... Scientist say that an asteroid hit the moon causing a big chunk to come off, all the space matter and… that chunk started to form earth. on earth there was a bunch of volcanoes and it was very hot, water started to form in a hole then bacteria started to form, the bacteria went through Evolution creating modern day humans.....
In Animal Life
it all began 3 billion years ago, and people believe it started in the sea. not really. it began with the sea forming rock pool on the land and using the suns energy came a ch…emical reaction that formed small, small organisms (base of life) and was soon swept into the sea to evolve farther, and become small creators in the sea and then every thing evolved to adapted to its habitat over time.
This is a question that has not been answered and may never be answered. Even when life can be synthesized in the laboratory we won't know if the method used is the same metho…d nature used.
in the garden of god
In order to have DNA, you have to have 20 critical protiens for DNAto form. These proteins can only be derived from present DNA. Thisevidence points towards Creation rather th…an evolution.