The term is normally applied to a group of between six and nine elements (boron, silicon, germanium, arsenic, antimony, tellurium, and possibly bismuth, polonium, astatine) found near the center of the P-block or main block of the periodic table.
They compete by food source because they both eat bugs and there for compete on who gets the bugs.
Answer:
D. none of the above
Explanation:
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