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?
1 A neuron has 4 basic parts: the dendrites, the cell body (also called the soma), the axon and the axon terminal. 2  Dendrites-Extensions from the neuron cell body that take information to the cell body. 3  Dendrites usually branch close to the cell body.4  Cell body (soma) - the part of the cell that contains the nucleus. Introduction: The brain is made up of about 100 billion nerve cells (also called neurons). 2  A neuron has 4 basic parts: the dendrites, the cell body (also called the soma), the axon and the axon terminal.