What is a cyclone? what are the two types of cyclone and how do they differ?

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.

Following photosynthesis, is moved to the roots for storage through the phloem.

Alarge body of air that has similar temperature, humidity and air pressure at a given height is called a