How do mutations lead to variation a. by giving organisms new features for survival b. by producing changes in the genetic code c. by signaling proteins to be synthesized d. by providing a source of energy for cells

Hi!

Question - How do mutations lead to variation

Answer - B. By producing changes in the genetic code

Why -  "In which can create entirely new alleles in a population"

B. By producing changes in the genetic code

Explanation:

Took the test although the letters are different.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.