PLEASE ANSWER ASAP WILL MARK BRAINLIES Describe how the pH and hydronium ion concentration will change in a solution as an acid is added to it.

If the hydronium concentration increases, the pH decreases, causing the solution to become more acidic. This happens when an acid is introduced. As H+ ions dissociate from the acid and bond with water, they form hydronium ions, thus increasing the hydronium concentration of the solution.

explanation:

the sequence of amino acids in a protein determines its function. the dna sequence of a gene determines the amino acid sequence of the resulting protein. thus, any changes in dna sequence can result in changes in protein function. this is called a mutation.

it has one origin of replication, but it proceeds in two directions - d)