Type the correct answer in the box. Spell all words correctly. What refers to a system where food technicians control and manage the volume of oxygen and carbon dioxide in an environment?
refers to a system where food technicians control and manage the volume of oxygen and carbon dioxide in
an environment.

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.