Answer: Bacteria is your answer!
Explanation:
"The nuclear material in the cell or the DNA is contained within a double membrane. Bacteria are the only type of cells that are not eukaryotic, they are prokaryotic so they do not have DNA encased within a membrane."
The nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. Nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and DNA, the building blocks of all life .
