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> and have a boundary from the environment This is not self evident. Maybe this is the news? I am not sure, what are you saying?
by posterboy 6y ago
> and have a boundary from the environment
This is not self evident. Maybe this is the news?
I am not sure, what are you saying?
- uoaei 6y agoNot the person you're replying to, but: That the processes inside the boundary and those outside the boundary only interact through relatively narrow-bandwidth channels across that boundary, and that it maintains the high level of internal organization, the boundary, and the input/output channels through self-sustaining internal processes.
- bbojan 6y agoThe fact that bacteria and archea have a chemically different cell membrane strongly suggest that it evolved twice, and therefore their original ancestor didn't have one at all.
- sthnblllII 6y agoIts part of the standard definition of life: > organisms are open systems that maintain homeostasis, are composed of cells... https://en.m.wikipedia.org/wiki/Life https://en.m.wikipedia.org/wiki/Life Cell by definition have a boundary called the cell membrane. >Cells consist of cytoplasm enclosed within a membrane... https://en.m.wikipedia.org/wiki/Cell_(biology) https://en.m.wikipedia.org/wiki/Cell_(biology)