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The ultimate source of nitrogen that living things use is the atmosphere, which is composed of about 78% nitrogen gas (N₂). This atmospheric nitrogen is not directly usable by most organisms, so it must be converted into a biologically available form through processes like nitrogen fixation, carried out by certain bacteria and archaea. These microorganisms convert atmospheric nitrogen into ammonia or related compounds, which can then be utilized by plants and, subsequently, by animals that consume those plants.

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3mo ago

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What is the ultimate source of energy for living things on Earth?

The sun


What is the ultimate source of energy living things?

The Sun is the ultimate source of energy for living things. The Sun is approximately 865,000 miles wide, and roughly 74 percent of its mass is made up of hydrogen.


The ultimate source of energy for living things is and why?

The ultimate source for living thins is the sun. This is because the sun provides things on the absolute bottom of the food chain with food. They are then used as food for the next living thing on the food chain. Things on the bottom of the food chain are called producers. They perform photosynthesis to convert the suns light into useable energy. Organisms the can create their own food are called autotrophs.


What is the main sources of energy in living things?

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Why living things need nitrogen?

All living things that contain amino acids (that's all of them,because every living thing has RNA and DNA) need nitrogen


Is Nitrogen found in all living tissue?

Yes, all living things are full of nitrogen including living tssue.


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Do cows contain nitrogen?

Yes. All living things contain nitrogen.


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the sun


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Yes, all living things require nitrogen for their survival as it is an essential component of proteins and nucleic acids.


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Fixes nitrogen for use by living things?

Nitrogen fixing bacteria. Also lightning.