from a single cell microorganisim.
There is no evidence so far that life exists on Mars - or that it ever existed there. Of course, it may have existed - more research is required to be sure.
Life has existed on Earth for approximately 3.5 billion years, which accounts for around 75% of the total time that the planet has existed (about 4.6 billion years).
It has existed as long as life has existed. Even paramecia are creative in how they catch their prey.
no
Not as far as we know.
They are nil.
Life has existed for most of the history of Earth. It is not known exactly for how long, but it seems to have existed for at least 3.7 billion years; you can compare this with the 4.568 billion years that the Solar System existed. It is possible that life existed longer, but left no traces (fossils).
He never existed in real life.
Life on Earth has existed for approximately 3.5 billion years. Given that the Earth is about 4.5 billion years old, life has been present for around 78% of Earth's history. Rounding to the nearest whole number, life has existed on Earth for about 78% of the time.
The answer is primary succession.
since the creation of life on Earth.
No. While the internet may be a way of life, life existed long before the internet did.