Why was the equal protection clause added to the fourteenth amendment?

it counteracted one found in the thirteenth amendment.
it was in response to northern laws prohibiting suffrage.
it restricted the power of black codes already in force.
it protected poor southern whites who could not vote.

It restricted the power of Black Codes already in force.

its many islands, high mountains, and remote peninsulas isolated population centers.

the of atp are the key to its ability to store and supply energy;

phosphate

the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.