What produces the genetic variation in population?

"acknowledging a right to benefit from the presence of animals requires government action to ensure human access to animals in a number of different spheres," writes jessica pierce, ph.d., in psychology today. the pragmatic meaning of the term "right" in this statement is

How do you transfer mrna into codons ? i'm so confused : (

What best describes the dropping height of a ball that bounces back up to a height of 45 cm