What are the bones in the human hand called

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

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.

Alizard lives in a desert. which would be an adapation for this lizard?