Plants get it from bacteria which live associated with their roots who take atmospheric nitrogen and fixate it (nitrogen cycle). Animals can only get it by ingesting organic compounds which contain nitrogen, such as plants and other animals which have eaten plants.
Animals obtain nitrogen by eating plants which have absorbed nitrogen from the soil.
Nitrogen
Most organisms obtain nitrogen in the form of nitrate (NO3-) or ammonium (NH4+). These forms of nitrogen are usually present in the soil and can be taken up by plants. Animals then obtain nitrogen by consuming plants or other animals.
Animals obtain the nitrogen needed to make proteins and nucleic acids by consuming foods that contain nitrogen, such as plants or other animals. The nitrogen is then broken down and used by the body to build the necessary molecules for growth and repair.
Animals obtain nitrogen primarily through the consumption of plants or other animals that contain nitrogen-containing compounds, such as proteins. They break down these compounds during digestion and reuse the nitrogen to build their own proteins and other essential molecules.
Bacteria in soil obtain their nitrogen primarily from organic matter, such as dead plants and animals. They can also obtain nitrogen through nitrogen fixation, a process where certain bacteria convert atmospheric nitrogen into a form that plants can use.
Animals obtain nitrogen primarily through their diet by consuming plants and other animals that contain nitrogen-based compounds. Plants absorb nitrogen from the soil in the form of nitrates and ammonium, which they incorporate into proteins and nucleic acids. When animals eat these plants or other animals, they break down the proteins and nucleic acids to access the nitrogen, which is then used to synthesize their own molecules. Additionally, some animals can also obtain nitrogen from symbiotic relationships with certain bacteria that fix atmospheric nitrogen.
Plants can obtain a variety of things from animals. The main things are CO2 from the exhaust of mammals, and the minerals/nutrients from animals' waste. Nitrogen from chicken waste is a very good example.
if not from the atmosphere , they must depend on a process called nitrogen fixation. They get it from the soil. That's why farmers add fertilizer to the soil to increase nitrogen content
False. Animals do not get nitrogen directly by eating decomposers. Rather, animals obtain nitrogen by consuming plants or other animals that have already processed and absorbed nitrogen from the environment. Decomposers break down organic matter and release nitrogen back into the soil, where plants can then absorb it.
Plants and animals cannot directly use atmospheric nitrogen (N2 gas) for their growth and development. Instead, certain bacteria in the soil or in the roots of plants can convert atmospheric nitrogen into a form that plants can absorb, such as nitrate or ammonium. Plants then take up these nitrogen compounds through their roots and use them to build proteins and other essential molecules. Animals obtain nitrogen by consuming plants or other animals that have already incorporated nitrogen into their tissues.
Nitrogen is found in all living systems as part of the makeup of biological compounds. Animals obtain the nitrogen they need by eating plants, or by eating other animals that have eaten plants.