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The Earth formed about 4.5 billion years ago, and less than a billion years after that, the first forms of life are believed to have appeared. They would probably have to wait until the oceans got below 100oC. Deep sea hydrothermal vents known as 'Black smokers' would have had the conditions necessary for the formation of life.
Fossils pretty well have to wait till there are hard-skined beings suitable for preservation. About 600 million years ago.
There is a colonial organism still found today, called Stromatolites and these are regarded as evidence of one form of very early life.
Eventually the algae formed and invented photosynthesis, and this marks a very major change on Planet Earth. The oxygen they produced was toxic to many of the existing bacteria. They consumed the methane and CO2 of the early atmosphere, and caused global cooling to the extent that the Earth entered a 'Snowball Earth' phase which lasted for a billion years or so.
Finally to emerge from the cold at the early pre-Cambrian, about 600 million years ago.
Plants are thought to have developed from the green algae. Animals of primitive form had to wait until the slimes arrived to provide food.
What else can I help you with?
What gradual change in living things over long periods of time called?
The gradual change in living things over long periods of time is called evolution. It involves genetic variation, natural selection, and adaptation leading to the development of new species.
Are living things sometimes called carbon-based forms?
Yes, living things are also known as carbon-based lifeforms. This is because carbon is the base of life as we know it. Carbon can form long chains with itself and so is uniquely able to be the basis of life.
What is an element that is not found in all living things?
There are a great many elements which are not a part of any normal biochemistry, but nonetheless, in the form of pollutants, lots of these can find their way into living things. Some elements are very unlikely to find in a living thing, technitium, for example. Then the radioactive elements with really short half-lives, such as Californium, Einsteinium, etc., would really never be found in living things. They don't last long enough.
What are special features that help living things survive in their environment that is only 11 letters long?
Adaptations.
Living things have a long history of change?
evolutionary change.
How long ago the first living thing form?
3.5 billion years ago.
Can a living thing or organism survive without other living things?
Long term, no. All living things are a part of the biosphere and the great cycle this encompasses. Without the other organisms that form part of this cycle, a living thing would eventually die.
Whichi element is in all living things and can make long chained molecules?
Carbon is the element found in all living things and can form long chained molecules due to its ability to bond with other carbon atoms and various elements.
What are some things that living things do not do?
Living things don't normally stay the same as long as non living things do. Most living things will die before a mountain crumbles.
What properties of carbon help it have a central role in the chemistryof living things?
Carbon can form long chains of C-C bonds.
Can living things live without water for a long time?
No
Can living things go with out water for long periods of time?
No
Is metal non living?
As long as you do not consider orgonomy---- No. First define 'living'... Sage
What are living things from long ago?
the living thing are dinosaurs,although the scientist can prove it to be real,but i'm sure it could be.
Where and in what form does carbon enter long term stores?
When living things die and end up in anaerobic conditions : (trees falling into swamp water) which leads to peat bogs and finally to coal.
What is the basis of most molecules that make up living things?
Carbon is the basis of most molecules that make up living things. Carbon has the unique ability to form long chains and complex structures, making it essential for building macromolecules like carbohydrates, lipids, proteins, and nucleic acids. Additionally, carbon can form strong bonds with other elements, contributing to the diversity and stability of biological molecules.
What is the long form of radar?
The long form of radar can be many different things. Radar stands for Radio Detection And Range in the USA military.
