what was the first life on earth?

Answer 1

If it started here on Earth, it came about due to natural processes, and I suspect at a geo-thermal vent underneath the ocean, 4 billion years ago.

But I think it started on Mars in similar conditions and was transferred here to Earth soon after.

Mars was hospitable to life millions of years earlier than Earth and meteor impacts can transfer material between Earth, Venus and Mars such that micro-organisms can survive the trip.

Answer 2

The first life on Earth was a single cell organism. It was similar to today's bacteria.

Answer 3

Abiotic Production of Organic Molecules
The classic experiment demonstrating the mechanisms by which inorganic elements could combine to form the precursors of organic chemicals was the 1950 experiment by Stanley Miller. He undertook experiments designed to find out how lightning--reproduced by repeated electric discharges--might have affected the primitive earth atmosphere. He discharged an electric spark into a mixture thought to resemble the primordial composition of the atmosphere. In a water receptacle, designed to model an ancient ocean, amino acids appeared. Amino acids are widely regarded as the building blocks of life.

Answer 4

It is believed that Foraminifera or Forams is some of the earliest life forms on the planet. The next very early life form would be stromatoporids. Stromatoporids or blue green algae is responsible during the Ordovician period for oxygenating the atmosphere to the current level it is at today

Answer 5

There were protocells, the precursors of prokaryotic bacteria and algae. They were essentially just bubbles of lipids that had no genetic material per se, but that concentrated autocatalytic reactions in a primitive emulation of metabolism. In fact, they were so primitive that it's arguable whether or not they were in fact alive. By some definitions they weren't... but that's the tricky thing about life. For those who say they were not alive, perhaps the slime molds and blue-green algaes that came later were the first living things. *shrug*

Answer 6

the first life on earth are called bacteria like the blue green algae
and some organism in the kingdom of monera, a kingdom of prokaryotes.

Answer 7

Yeah, poorcocoboiboi has it about right. The heterotrophs were the first life, according to the first link. But he forgot to give some sources for more details.

I'm pretty sure Bob Baker came many years latter.

Answer 8

To all of you I'm the religious nut and I say the first life on earth was plants! Created on the third day.

Answer 9

Most likely a load of crap from some visiting spaceship. All things great and small and something about a beginning and an end too.

Answer 10

Bob Barker