Most dissolved carbon in the ocean is used to form which structure in marine organisms?
the fronds of giant algae
the muscle tissue of small fish
the nerves of giant mollusks
the skeletons of coral polyps

D

Explanation:

Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter. Many organisms use carbon to make calcium carbonate, a building material of shells and skeletons

The skeletons of coral polyps.

Explanation:

The photosynthesis by the aquatic plants, atmospheric carbon dioxide dissolved in the oceanic water, the decomposed and degraded matter of animals and plants can increase the concentration of the carbon dioxide in the oceanic water. This carbon dioxide can be useful to develop the coral reef the hard skeleton structure composed of calcium carbonate by the colonies of the coral polyps.  

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…

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explanation:

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