Which of the following factors of a gene determines the protein, and therefore the trait, it expresses in a cell Where the cell is found in the organism.

The position inside of the nucleus.

Its length and sequence of nitrogen bases.

Its shape and color after cell reproduction.

the index of refraction of the second medium is higher. i just took the test trust me !

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.

if you listed your answers right then i believe your answer is b.