Insulin is an important hormone that allows the body to use glucose from food. after an individual eats a meal, glucose travels through the blood stream and reaches beta cells in the pancreas. the glucose causes the beta cells to release insulin. insulin then travels through the blood stream and attaches to insulin receptors on other cells, which allows them to take in glucose and use it for energy.

what does this information best demonstrate?
a.
a hormone is a protein that performs many functions in the body.
b.
beta cells are not necessary for glucose to be utilized.
c.
cells interact with other cells for regulation and homeostasis.
d.
only certain cells can use glucose to produce energy.

C.

Cells interact with other cells for regulation and homeostasis.

Explanation:

the question isn't complete here so i can't right an 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.