Food chains show how living organisms obtain their food, while food webs show how multiple food chains are interrelated.
which of the following is a true statement regarding food webs?
a.
ninety percent of the energy that is available at one trophic level is transferred to the next level.
b.
matter and energy are not conserved as they pass through a food web.
c.
matter and energy are conserved as they pass through a food web.
d.
ninety percent of the matter that is available at one trophic level is transferred to the next level.

Matter and energy are conserved as they pass through a food web.

A food chain is the linear sequence of transfer of food and energy when one organism is fed or consumed by another organism in an ecosystem.  A food web is an interconnection of food chains within an ecosystem. In food web, each food chain is dependent upon other food chain for it's food and energy requirements. A food chain comprises of trophic levels according to the type of consumers it exhibit like primary producers, primary consumers, secondary consumers , tertiary consumers and quaternary consumers. At each trophic level of the food chain matter and energy remain conserved in the form of biomass. This biomass is distributed as an outcome of the overall feeding process between the food chains. Therefore, matter and energy are conserved as they pass through a food web.

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.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.