2.

patsy is studying different kinds of weathering. she has four pans full of dried modeling clay. some she adds water to. some she freezes overnight, then lets thaw, as summarized in the table below:

panadded water? froze the pan? 1yesyes2yesno3noyes4nono
then she compares the clay in all four of her pans. the clay in pan #4 was the same at the end of the experiment as it has been at the beginning. the clay in pan #1 had changed and broken up more than the others.

which of the following conclusions could patsy have made?

frozen clay takes up more space than thawed clay does.

adding water to clay and then freezing it breaks the clay apart more than either freezing it or adding water to it alone.

adding water to clay and then freezing it plants to grow in the clay more than either freezing it or adding water to it alone.

wet clay takes up more space than dry clay does.

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

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.