What molecule forms the cell membrane? proteins carbohydrates phospholipids nucleic acids

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

What happens when the cell copies its chromosomes

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .