Kind of like on land actually. The bottom of the ocean is full of mid-ocean ridges (which are like mountain ranges), valleys, canyons, plains, and undersea volcanoes. It also has seamounts (which are formed by volcanoes), trenches, and rift valleys.
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Human language is unique among all forms of animal communication. It is unlikely that any other species, including our close genetic cousins the Neanderthals, ever had language, and so-called sign ‘language’ in Great Apes is nothing like human language. Language evolution shares many features with biological evolution, and this has made it useful for tracing recent human history and for studying how culture evolves among groups of people with related languages. A case can be made that language has played a more important role in our species’ recent (circa last 200,000 years) evolution than have our genes.
Explanation:
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The thylakoids contain two photosystems. They are the site of light-dependent reactions and are a <span>membrane-bound compartment inside chloroplasts and cyanobacteria.</span>
