The ocean floor regions are the continental margins, the ocean basin floor, and the mid-ocean ridge.
Answer:Characteristics
Explanation:
Most traits would come from characteristics and ancestry.
A phylum has more biodiversity because class is what narrows the phyla down even more. ( The order of largest biodiversity to smallest biodiversity is domain, kingdom, phylum, class, order, genus, species)
The answer is B. It is B because in if convection currents cooled down then the earth would die.
