Which one of the following circumstances would most likely result in evolution?
a. a single individual dies in a large population
b. a free parrot has an allele for green feathers and an allele for blue feathers
c. a butterfly predators is yellow more easily than it does green in a population of butterflies includes both phenotypes
d. a large population continues to grow larger

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.