In evolution, how whas the organism from which all others evolved from formed?

Answer 1

Originally, "life" consisted of self replicating RNA molecules, adding to each other something like crystals attract other molecules of the same type. Eventually, particularly in restricted areas, like ponds, there will be a shortage of resources for material for replication, so as molecules degrade, those molecules which can utilise those resources more efficiently will get them first, those molecules which can become more stable will degrade less. In this way, any DNA which happen to form, probably from degraded RNA, became the dominant replicating molecule. This is an example of natural selection, intelligence or even sentience is not required. If some DNA (or RNA) formed with a protein shell, this would give it extra stability, this is, in fact, a very simple viral picture. Simple prokaryotic cells were just many of these molecules binding together, forming mutually beneficial colonies, some of the molecules formed into the membrane, some the interior of the organism. They had a billion years to do this, so there was plenty of time.

Answer 2

Most where formed by genetic mutations that caused different capabilities and appearances. The above answer is correct but bacteria came before plants.

Answer 3

water -> minerals -> rock -> fungi -> plants with no tubes -> plants with tubes -> (more types of plants) -> trees -> (different types of trees) -> bacteria -> ect

...if i remember right

Answer 4

No one knows for sure. and that is a fact.