What is the easiest way to define a dependent and independent variable in science?

An independent variable is exactly what it sound like. It is a variable that stands alone and is not changed by the other variable you are trying to measure. For example, someone’s age might be an independent variable.

A dependent variable is exactly what it sound like. It is something that de[pends on other factors

For example, a test score is an dependent variable you got sleep at night before you took the test.

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.

you know they are heterozygous for a trait because they have it as jj or jj.