The nitrogen cycle requires what to convert nitrogen to nitrites and nitrates.

Answer 1

The conversion of nitrogen to nitrites and nitrates requires bacteria, specifically nitrifying bacteria.

Answer 2

Living organisms can incorporate what into their metabolism

Answer 3

Living organisms can incorporate various substances into their metabolism, including carbohydrates, lipids, proteins, nucleic acids, vitamins, minerals, and other necessary nutrients. These substances are essential for the growth, development, and maintenance of the organisms. Some organisms may also incorporate light energy through photosynthesis to produce organic compounds.