[js1138]

It is a continuum. Darwin's presupposition, his very theory is built on "omne vivum ex vivo" which IS the Law of Biogenesis.

Sorry, but this is simply wrong in every possible way.

1. Evolution can happen regardless of how life started.
2. Evolution can happen regardless of how many times life independently started.
3. You are conflating a process with a specific history.
4. There is nothing about the process of evolution that requires common descent. We just happen to have a lot of evidence that common descent describes life on earth.
5. Darwin never said or implied life only comes from life. In Origin he said evolution begins with the first living cell.
6. Later he is on record speculating about abiogenesis
7. Biogenesis and evolution are not tied together by necessity. They may or may not be tied together by fact.

[Alamo-Girl]

Sorry, but this is simply wrong in every possible way.

No, js1138. It is dead-on accurate.

Because Darwin's theory did not include a theory of abiogenesis, there is no inception - no bootstrap - to the evolutionary tree of life. But from the inception point forward, it is an unbroken continuum, a chain of common descent - life from life.

If he thought otherwise, the tree of life would look like a field of grass.