The correct answer is B. All species share a common ancestor and that change occurs through time.
We can see this because the diagram start at one point (the common ancestor) and spreads out in different ways (changes throughout time).
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Fluorine is a nonmetallic, diatomic gas with the symbol F and atomic number 9. Atomic number represents the number of protons in the atom. When F is neutral it means that the number of protons is equal to number of electrons. But, when F is an ion (F-), the it has more electrons (10) than protons, meaning its an anion.
The answer is flow of energy
