Question 2 (1 point) Mice living on the darkened lava flows have evolved a darker fur coat color. Why? a Ob Because mice with mutations that made them darker survived more often and passed on their genes more frequently, Because exposure to the sun caused them to "tan" just like humans, Because humans genetically modified the mice in these regions Because they needed to in order to survive. ​

the correct answer is c   with the systems

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.

i got you i did it ya know what it is just needing to fill this in for a quick task!