During which phases of mitosis are sister chromatids attached to each other? plzz me

When water freezes, it . contracts expands

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water