|The ____ is a network of protein filaments in the cytoplasm.
|A ____ is a pair of centrioles arranged perpendicularly.
|The nucleus is considered the ____ of a cell.
|The internal fluid of a cell is called the ____.
|A ____ is a cylindrical organelle composed of microtubules.
|The smallest level of organization of life in an organism is a ____.
|Cells are mostly made of ____.
|During the interphase ____ stage, chromosomes are replicated.