A scientist is investigating the effects of salinity on fish development. He places fertilized fish eggs in an aquarium that contains low salinity and observes their development. What factor would improve experimental design the most? (3 points) Group of answer choices

Place the fish eggs in the open ocean because that is the natural habitat

Include another aquarium that has normal salinity to compare to the low salinity aquarium

Include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt

Grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos

the form of energy changes and the total energy increases0l

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.