The Burning of either wood or fossil fuels will add carbon dioxide to the atmosphere. How is the burning of fossil fuel different? A. Unlike would fossil fuel require oxygen to burn
B. Unlike word fossil fuel do not require oxygen to burn
C. Unlike would fossil fuel burn without releasing energy
D. Unlike wood fossil fuels contain carbon that has been stored for millions of years

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.