Because it is like the control center to the cell. without it, the cell could not live.
Bacteria cells don't have a nucleas.
Humans.....Blood Cells Do Not Have A Nucleas.
Bacteria cells don't have a nucleas.
Eukaryotic
A cell that does have a nucleas :P Jk...A cell with a nucleas is called prokaryotic, and a cell that does not have a nucleas is eukaryotic; no idea if i spelled that right. Is that what you meant by your question?
The control center in cells
Nope. There is only a Nucleas in an animal cell.
It is true.
An insect has a nucleus in every one of its cells, since it is composed of Eukaryotic cells.
obtain energy from nucleas
No, but all it is found in all Eukaryotic cells. Cells without a membrane bound nucleus are called prokaryotic cells.
Yes, all of the cells of a multicellular organism have a nucleus.