Answer:
We can see some of the most important patterns Darwin noticed in distribution of organisms by looking at his observations of the Galápagos Islands off the coast of Ecuador. Darwin found that nearby islands in the Galápagos had similar but nonidentical species of finches living on them.
If the element has not become an ion yet, then there is 73 electrons.
Number of protons = number of electrons**
**only when the element has not form an anion or cation.
The centrosome is the major microtubule-organizing center in the cell. During interphase the centrosome is responsible for creating a microtubule array and during mitosis it assists in bipolar spindle assembly.