Brenda and her friend are relaxing in a paddleboat, slowly working the paddles with their legs to move the boat. which organelles in the muscle cells of brenda’s legs enable brenda to have the energy for this activity? a. centrioles b. lysosomes c. mitochondria d. ribosomes e. vacuole

Based on my knowledge C. mitochondria is the correct answer

All the cells require energy in order to work, however, the cells of the muscles possess an unusually greater need for energy. The muscles go through vigorous activity and such amount of energy provided by the organelles known as mitochondria.  

mitochondria

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.