El Paleozoico se divide en seis períodos: Cámbrico (la vida animal florece en los mares), Ordovícico (dominan los invertebrados), Silúrico (primer animal de respiración aérea), Devónico (aparecen peces con escamas duras y los anfibios), Carbonífero (aparecen grandes bosques de helechos, primeros reptiles etc,
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Shark Meat Should Stay Legal In The U.S Because:
<u>~ Shark meat is not particularly popular in America because many species found off American shores are endangered and shark meat has also been known to contain high levels of mercury in some cases.</u>
Answer:
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