Using the information in the figure to help you outline how you could investigate the effect of changing the surface area-to-volume ratio of the agar blocks (model cells) on the rate of diffusion of a substance into the agar block (model cell).

According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this?               a.  this implies that dna and proteins aren't essential in cells today.    b.  this implies that rna can catalyze any chemical reaction that enzymes catalyze.    c.  this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna.    d.  this implies that dna and proteins evolved after rna.