Which of the following was an important quality of protocells?

a) they had no membrane
b) they were able to self-replicate
c) they were autotrophic

Being able to self-replicate was an important quality of protocells.

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It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on