Consider the following food chain: plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes. what will happen to snakes in the long term if mice become extinct? a. the number of snakes will increase temporarily, and then decrease. b. the number of snakes will decrease permanently, but they will not die out completely. c. the number of snakes will decrease temporarily and then increase. d. snakes will die out if they do not find an alternative food source.

the answer is d i just took the test

a. by using fur or clothes to trap heat energy near the body

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.