What role do smooth muscle cells perform in a human body? a. organ contraction b. skeletal movement c. blood pumping d. heart contraction

The correct answer is option A. organ contraction.

Explanation:

Smooth muscle is present in the walls of hollow organs like stomach and intestine. The muscular walls of the intestines and other organs contract to perform their specific functions.  

The smooth muscle help in the uterus contraction and release urine in the bladder.

Smooth muscle also helps in regulating the flow of blood in the arteries and movement of food in the digestive tract.

Thus, the correct answer is option A. organ contraction.

the answer is a on edg

Explanation:

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.