The amount of magnetic flux that rises up to the Sun's surface varies with time in a cycle called the solar cycle. This cycle lasts 11 years on average. This cycle is sometimes referred to as the sunspot cycle. Near the minimum of the solar cycle, it is rare to see sunspots on the Sun, and the spots that do appear are very small and short-lived.
exists and is an alternate of . Making the world better, one answer at a time. The three main parts of the cell are the cell membrane (surrounds and protects the cell), the cytoplasm (the liquid inside the cell), and the nucleus (control center of the cell). Minor edit?
Plant and animal cells are different.Animal cells have 5  parts.    Nucleus  Cytoplasm  Mitochondria  Vacuoles  Cell membrane   1. Nucleus is like a person's bra â¦ in.it tells the cell how to do  it's job.   2. The cell membrane is like the skin.It lets things is and out of  the cell.   3. Vacuoles store water for the cell.they also store waste  products.   4. Cytoplasm is like water or liquid and fills the inside of the  cell.it holds the other parts of the cell in place.   5.