Which of the following are true statements about what could happen to a star at the end of their life? choose all that apply!

Looks like you have the correct answers

Explanation:

Stars very well can turn into black holes or go supernova when they die, so those are both correct, as for your third choice im not to sure about it, it sounds right because from my understanding of stars they rapidly expand before dying as that expels leftover particles (Plus supernova`s are basically giant explosions and as such the matter would have to rapidly expand outwards in order to achieve that). Stars do not fall to earth when they die, not only would we all be dead if that was the case but shooting stars are also not real stars to my knowledge, I believe they are just comets or something. Stars do indeed die, although the left over gas cloud of a dead star can reform into a new star they still do technically go through a process of death. And last but not least, I would assume dying stars get dimmer as they die, as they are losing the particles that allow them to glow and eventually one all those particles are gone it can not glow any longer, so it makes sense, and seeing as your question is worth 4 points, it would make sense to have four answers. Hopefully this helped you out!

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.