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The estimated diversity, in this case species richness, is higher on land than in the ocean. To resume the state of knowledge of biodiversity, here's an excerpt from an open-access paper by Mora et al. (2011) How Many Species Are There on Earth and in the Ocean? "...(our analysis) predicts ∼8.7 million (±1.3 million SE) eukaryotic species globally, of which ...


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Algae produce O2 in the upper layer of water but when they die they stop producing O2. They sink to the seafloor and most get decomposed by bacteria on the seafloor. In this process, bacteria use O2 contained in the bottom layer of water which decreases the dissolved O2 concentration in the bottom water. These concepts (and much more!) are well described in ...


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No. The article linked to is a hoax, and was debunked by Snopes. The website is known for its hoaxes and satirical articles, and it states itself that its articles are faked. WNDR assumes however all responsibility for the satirical nature of its articles and for the fictional nature of their content. All characters appearing in the articles in this ...



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