Which statement below best describes mutations?

a. all mutations cause organisms hardship.
b. mutations always good for an organism and the species as a whole.
c. mutations are a change in dna or a chromosome and can be , harmful or may have no affect.
d. mutations occur when the dna is made with out error and the nucleotide bases match up exactly as intended.

C. Mutations are a change in DNA or a chromosome and can be helpful, harmful or may have no affect.

Explanation:

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

can you attach the