Answer: One of the primary functions of carbohydrates is to provide your body with energy.
Explanation:
Calcareous ooze<span> is a form of calcium carbonate derived from planktonic organisms that accumulates on the sea floor. ... Below this depth, calcium carbonate begins to dissolve in the ocean, and only non-</span>calcareous<span> sediments are stable, such as</span>siliceous ooze<span> or pelagic red clay.</span>
I don't really know but I pick b.have always been vestigial.
C
in the first paragraph a fact is challenged
and the second one provides an example
