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