in water
Most likely the Homo sapien. Although E. coliis adefinitecontender.
in water
In water
The most recent Ediacaran organism is said to have lived prior to 1946 after fossils were found.
universe, galaxy, planet, cell, organism, tissue, organ, ecosystem
on waynard laa!
On the planet Earth
The inner or terrestrial planet that we could most likely live on is Earth. Mars would be a far distant second.
Earth
An organism can live as long as it can live.
Yes, there are many, many one celled organisms on our planet. Some examples are algae, amoeba, and bacteria.
Because we live here?