A "nucleus" is found in every cell in the body and basically like the... overall commander of the cell
It does not let in the nutrients that is the job of the Cell Membrane which is partially permeable.
Post Script, there is quite a lot of cells in the body...
A nucleus is the control center of a plant or animal cell. DNA (Deoxyribonucleic acid). It also contains the 23 pairs of chromosomes. ;D
the nuclus regulates all cell activity it does this by controlling the enzymes present the chormatin is composed of dna
done by a girl in grade 6
red cell
The protons help keep the nuclecus intact.The protons decide the atomic number of the atom.The protons balance out the negative charge by the electrons.The protons add mass to the atom.