Which activities occur during prophase II? Check all that apply. DNA condenses to form chromosomes.
Each chromosome pairs up with its mate.
Spindle fibers form.
Chromosomes move to the opposite end of the cell.
The nuclear envelope disappears.

What must happen before a body cell can begin mitotic cell division

Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?