The Haber process converts nitrogen gas into ammonia<span> used in fertilizers. </span>Ammonia<span>is converted to nitrates by nitrifying </span>bacteria in the soil<span>. Plants absorb nitrates from the </span>soil<span> and use these to build up proteins. The plant may be eaten by an animal, and its biomass used to </span>produce<span> animal protein.</span>
RNA molecules are produced during transcription, the molecules being the ribonucleotides of mRNA
The mouth is the beginning of the digestive tract; and, in fact, digestive starts here when taking the first bite of food
Oxygen is the common characteristic which helps fire to burn and a flowering plant to live on earth. When oxygen combines with a suitable chemical, it releases energy in the form of heat.
