The structural and functional unit of all known living organisms is the cell. Eukaryotic cells of which humans are composed contain membrane-bound compartments. The most important among these is the cell nucleus. It is the "control center" for each cell that has at least one. Separating the nucleus from the cellular cytoplasm is the double-membraned structure of the nuclear envelope.
Inside the nuclear membrane, including attached to the inner layer of this membrane, are a variety of substances serving special purposes. Depending on conditions, for a time, some of these compose the<unk> , some compose the nucleohyaloplasm, and still others compose the nucleoplasm. Those substances and the special conditions present, even if temporary, in water can be the<unk> . The nucleus cannot succeed in its efforts to control the cell without the special properties of the<unk> .
Nucleosol
Vector 
Vector
Electron
Endospore
Capsid
Microbiome
Tissue 