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What do scientists hypothesize about the first life forms on Earth 3.5 billion years years?
Wiki User
∙ 7y ago
survival of the fittest, the big bang and evolution. from tiny creatures living in the sea, to apes, dogss, cats, and many other animals that live now. the survival of the fittest is prooved by extinction.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoProkaryotic organisms (1 cell and no nucleus)
The atmosphere of the earth was hot and had many gases which formed with natural elements to form nitrogenous bases. Which then combined and multiplied to form a cell. The eukaryotic cell did not come until the prokaryotic cell apparently morphed with another one of the same type to form a double-membrane.
If you are looking for some evidence, look at the endosymbiotic theory.
Wiki User
∙ 12y agoArchaea (ancient bacteria), similar to remaining modern forms.
Wiki User
∙ 12y agoprokaryotic (did not have a nucleus) anaerobic (did not consume oxygen) aquatic, heterotrophs (did not produce own energy; ate other things for energy) single-celled
Wiki User
∙ 12y agoSimple prokaryotes
Wiki User
∙ 14y agoDNA I think
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Were rocks that are 3.5 billion years present when earth was first formed?
No, rocks that are 3.5 billion years were not present when earth was first formed. Earth formed about 4.6 billion years ago.
When did the earth form as a solid planet?
The Earth formed from the young Sun's accretion disk about 4.5 billion years ago. At first the planet was molten, but the surface of the Earth cooled enough for the crust to solidify about 4.1 billion years ago. Scientists believe that water arrived later in the form of comet impacts, forming the first oceans.
When did invertebrates first appear on the Earth?
The first fossils of invertebrates are at least 3.5 billion years old.
When did the first cells appear on earth?
About 3.5 billion years ago.
When did Earth first form?
Around 4.5 billion years old.
Why scientists hypothesize that chemical events preceded the origin of life on earth?
Because life requires chemical processes. They had to be present first...
Life has existed on earth for how long?
Most scientists agree that life on Earth appeared 3.6 billion years ago. The first life forms on the planet were prokaryotes.
When did the first life forms appear on Earth?
Scientists think that the first life forms appeared on Earth about 3.6 billion years ago. These were simple cells that eventually evolved into the abundance of life we see today.
Scientists believe that earth and the other planets formed?
first era was the Precambrian
Were rocks that are 3.5 billion years present when earth was first formed?
No, rocks that are 3.5 billion years were not present when earth was first formed. Earth formed about 4.6 billion years ago.
How long ago did bacteria first appear on earth?
Scientists believe that the earth's atmosphere has been in existence for over 3.5 billion years. This is based on the fossil records that are found which date to so many years.
Was plankton the first thing on Earth?
No, actually Scientists believe that one of the first things that appeared on earth was waterAnswer:The first living things on Earth were similar to the modern day single-celled organisms called Archae. This was some 3.5 billion years ago. Plankton were a much later development.
When did horse come to existence?
Being a Christian, I say in the first week when God put all land animals on earth. Scientists say 55 billion years ago.
What do scientists Know about aliens?
they were first on earth
When did the earth form as a solid planet?
The Earth formed from the young Sun's accretion disk about 4.5 billion years ago. At first the planet was molten, but the surface of the Earth cooled enough for the crust to solidify about 4.1 billion years ago. Scientists believe that water arrived later in the form of comet impacts, forming the first oceans.
Exactly WHICH billion years of the Earth's five billion years of geological history is missing?
That would be the first billion years, as the Earth was a ball of molten rock- which then underwent multiple meteoric impacts.
When did invertebrates first appear on the Earth?
The first fossils of invertebrates are at least 3.5 billion years old.
