C they release pheromones so the other animal picks them up and changes the hormones in their body
All of the above would be the correct answer.. Please use letters or even periods between the answer choices next time.
Answer:
Animals ingest nitrogen in nitrate-containing food after plants use nitrogen containing compounds.
The organic matter decays via decomposers.
N molecules breaking apart via nitrogen fixing bacteria.
N2 is formed via denitrifying bacteria.
Explanation:
Plants utilizes nitrogen compounds with the help of roots. Afterwards these plants serves as source of food for the animals. When both plant or animal dies the decomposing bacteria acts upon to breakdown the complex organic remains of plants and animals into ammonia, which is then subjected to the process of nitrification. Here the ammonia is converted into nitrites and nitrates respectively. Then it is acted upon by denitrifying bacteria and the nitrates and converted into gaseous form of nitrogen.