A group of scientists recently proposed the idea that beets should replace salt
for melting winter ice. The scientists pointed out that because beets grow
underground, they continue to grow in freezing conditions. Thus, they
hypothesized, an extract of beet roots could melt ice on roads in winter.
To test this hypothesis, the scientists froze equal volumes of water on two
separate plates. They spread an extract of beet roots on one plate of ice and
sprinkled an equal amount of salt over the other plate. After keeping both plates
at 0°C (the temperature at which water freezes) for a period of time, they
measured the amount of melted water on each plate. Their results showed that
the plate treated with beet extract contained more liquid water than the plate
treated with salt.
a) Summarize the steps of the scientific method by answering the questions in each box below.

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.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.