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climatically and geographically defined as similiar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms
underwater structures made from calcium carbonate secrated by corals. Harbor the most diverse ecosystems on Earth
a volanic vent that sprouts out geothermally heated water; host complex communities
an underwater plain on the deep ocean floor, found at the depths of 3,000 and 6,000 meters. The deepest living fish was found at this depth
a tree/shrub of medium height. It occurs in tropics or subtropics and exists in brackish and pure salt water
a partly enclosed coastal body of water with one or more rivers or streams flowing into it. It has a connection to the sea
underwater areas with a high density of kelp. It is one of the most productive and dynamic ecosystems on Earth
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