PLEASE HELP ASAP Kelp play a substantial role in building the structure for kelp forests impacting species richness. Which statement best explains the role of kelp forests in maintaining the diversity of the ecosystems?

Kelp forest act as ecosystem engineers.
Kelp act as a keystone species.
Without the kelp forest as the producer, the feeding relationship would collapse.
With the presence of consumers, kelp is an invasive species.

i think the first one, Kelp forest act as ecosystem engineers

Explanation:

if im wrong im sorry

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.