Which of these is an example of a subsequent boundary? (1) A border separating two states is removed because the states are now one state.
(2) Straight lines or arcs are drawn on a map to show the border between two adjacent countries.
(3) A border is created dividing the North and South of a country because of conflict.
(4) A wall is built along an existing border to keep people from crossing it illegally.
(5) Steep mountains separated two regions before people settled in them.

Explanation is in the file

cutt.ly/zxt1ipy

maritime tropical may be your answer.

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.