The formation of foam is evidence that what is taking place because what is a product of what?

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?

If a cell is placed into a hypertonic environment, what will happen to it ? a)it will shrink or shrivel b)nothing c)it will burst d) it will expand or enlarge