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the nitrogen is released back into the environment.

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13y ago
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10y ago

It is taken in as gaseous nitrogen from the atmosphere (which we breathe), and expelled into the environment through nitrogenous wastes (i.e. urine).

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12y ago

Used for amino acid and protein synthesis... excreted in urine as ammonia. Excreted in fecal material as well.

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Q: How is nitrogen used and excreted by animals?
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Related questions

Nitrogen in the soil is used by what?

nitrogen in the soil is used by both plants and animals.


Can nitrogen in soil be used by plants or animals?

Nitrogen is everywhere But somehow, nitrogen has to get from the atmosphere into a form that our body can use.I also think that nitrogen in soil can be used by plants not animals


Which form of nitrogen waste is excreted by crayfish?

Ammonia


What mineral is excreted in urine along with nitrogen?

sodium


What happens to nitrogen in amino acid breakdown?

Excess nitrogen is made into uric acid and excreted.


What uses nitrogen in the soil?

it is used by plants and animals


Do animals take in nitrogen directly from the atmosphere?

Since 78.08% of the Earth's atmosphere is composed of nitrogen, yes. But it cannot be used in biological processes. The nitrogen animals use comes in the form of nitrogen compounds acquired from food. Ultimately, the nitrogen used by most living things is produced by nitrogen-fixing bacteria which do use nitrogen from the atmosphere, these compounds are then taken in and used by plants.


What happen to the nitrogen in an organism after it dies?

Well, most of the Nitrogen in an organism's body is excreted as urine, urea or ammonia.


What is the source of nitrogen for animals?

Animals get nitrogen from plants.


Describe the path of nitrogen through its biogeochemical cycle?

Nitrogen gas in the soil is used by plants, which are eaten by animals. The waste products of the animals contain the nitrogen. It is broken down by bacteria, which releases nitrogen gas into the atmosphere, and the cycle repeats.


Where is carbon dioxide excreted in animals?

gas


Can humans get the nitrogen they need to exist in the air?

Plants and animals die and decomposers break down their nitrogen containing molecules to ammonia. All animals get the nitrogen they need by eating plants, by eating other animals that ate plants, or by eating animals that ate animals that ate plants.