Answer:
The most important part of the cycle is bacteria. Bacteria help the nitrogen change between states so it can be used. When nitrogen is absorbed by the soil, different bacteria help it to change states so it can be absorbed by plants. Animals then get their nitrogen from the plants.
Explanation:
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Answer:
They are composed of molecules that contain carbon-carbon bonds.
They undergo chemical reactions to use energy they acquire from the environment.
Living things are organisms that displays characteristics of life. These characteristics includes the ability to grow, reproduce, use of energy, excrete out waste, respond to the environment and have organised structure.
The lungs <span>transfer oxygen from the air to the blood. </span>