HELP PLS/ A large bottle with a layer of mud on the bottom is filled with pond water. Several fish and some green plants are then added and the bottle is made airtight. When a fish in this bottle dies, the nitrogen from its body is released through the action of .

A
Producers

B
Algae

C
Decomposers

D
Virus

C: Decomposers

Explanation: The mud and pond water likely contain some sort of decomposing bacteria. These bacteria can break down the complex nitrogen compounds in the dead fish, producing simple nitrogen compounds. These simple nitrogen compounds can then be used by the plants added to the terrarium.

A is wrong because producers (such as the green plants added to the terrarium) can not break down the complex nitrogen compounds in the fish's body.

B is wrong for a similar reason. Algae are primary producers. Because of this they also lack the ability to break down the complex nitrogen compounds found in the fish's body.

D is also wrong. A virus may be able to infect the fish and cause disease, but it lacks the ability to break down the complex nitrogen compounds found in the fish's dead body.

Since A, B, and D are wrong, along with the fact that we know that decomposers can break down the complex nitrogen compounds in the dead fish, we can conclude that C is the correct answer.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

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