Biology, 03.11.2019 03:31 nurikchan

In all ecosystems what happens when the keystrokes species is removed?

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Answer from: mm016281

removal of a keystone species makes the rest of the system more unstable, but the best way to understand how this works is to visualize it, either by drawing a model, or using a diagram.

Atlantic Cod is a keystone species. if the cod were removed, the seal population would decline because of a prey shortage, which would increase the populations of all the other fish species that the seals consume. Those increased fish populations would then overexploit their available prey, causing the population of prey to decline, resulting in a decline in predatory fish, resulting in an increased decline in the seal population, etc.

In addition, each increase or decrease in any species will affect every other species it interacts with, creating one hell of an unpredictable mess, which often leads to ecosystem collapse and/or extinction.

This phenomenon is known as trophic cascade.

Answer from: Quest

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.

Answer from: Quest

what is shown in the image?

eukaryote

chloroplast

mitochondrion

submitted

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