ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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by consuming plants or other animals.
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by breathing in atmospheric nitrogen.
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directly from bacteria in the soil.
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from the process of denitrification.
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Detailed explanation-1: -They get their nitrogen by eating other animals. When plants and animals die, the complex nitrogenous compounds present in their bodies are decomposed and converted into simple nitrogen compounds. This is done by certain bacteria and fungi (decomposers).
Detailed explanation-2: -Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use.
Detailed explanation-3: -Animals can absorb the nitrogen required for their existence by consuming plants and other animals.
Detailed explanation-4: -All living things need nitrogen to build proteins and other important body chemicals. However, most organisms, including plants, animals and fungi, cannot get the nitrogen they need from the atmospheric supply. They can use only the nitrogen that is already in compound form.