Answer and Explanation:
The ocean takes up carbon dioxide through photosynthesis by plant-like organisms (phytoplankton), as well as by simple chemistry: carbon dioxide dissolves in water. It reacts with seawater, creating carbonic acid. ... In the center of the ocean, wind-driven currents bring cool waters and fresh carbonate to the surface.
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The first is A second is C
Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.
The nucleolus<span> makes ribosomal subunits from proteins and ribosomal RNA, also known as rRNA. </span>
No organism is always the first step, except in a wide sense, plants. In the water, plankton is found in first but whereas on land, plants or seeds are eaten first.
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