Is a nucleus a cell or a tissue?

The organized arrangement of cells in tissues relies on controlled cell division and cell death. Learn how cells are ... Within multicellular organisms, tissues are organized communities of cells that work together to carry out a specific function. The exact role of a .... From there, the signals travel to the nucleus of each cell. read more

Nucleus itself is seen inside, at the center of the cell. So it is neither a cell nor a tissue. Nucleus is an organelle. read more

In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel or seed) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a few others including osteoclasts have many. read more