What is the meaning of selectively permeable?

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

The body of water found at number 4 on the map above is the