The graph above shows the frequency distribution of a population of fish before and after scientists engaged in a breeding program over many generations. which of the following explanations best describes the program? a. the average size of the population did not change because no selection occurred. b. the average size of the population decreased because the scientists selected for smaller individuals. c. the population spontaneously grew larger. d. the average size of the population increased because the scientists selected for larger individuals.

its D , the population increases

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

idk let me see fdfdgdg