What observations did you make during the animation from Interphase back to interphase again?

=> Production of protein occurs at interphase.

=> The interphase stage is longer than the four stages of mitosis.

Explanation:

There are three things that one has to understand in cell division and they are; the interphase stage, the four mitosis stages and the cytokinesis.

The interphase stage is the growing stage and it is really not part of mitosis. The interphase stage can be said to be the "resting stage" for cell division. The interphase stage consist of the G1(production of protein occurs here), S( this is the chromosome replication) and G2 ( for further growth).

The four stages of Mitosis are; prophase, metaphase, Anaphase and Telophase. These four stages shows how or the steps involved in the fomation of two new daughter chromosome in a cell.

Cytokinesis is the stage following mitosis and it is the division of the cell membrane into two new cells

a) the particles of the chair are strongly held together.