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what is the estimated life of a hydrothermal vent community
There are some organisms that make there own food and that don't need vitamins from the sun.
There are none. No sunlight penetrates that deep, so there is no sunlight for photosynthesis. Instead, bacteria use chemosynthesis. They take the chemicals in the water shooting out of the vents, and make it into food.
Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins, and hotspots. Vent organisms depend on chemosynthetic bacteria for food. The water from the hydrothermal vent is rich in dissolved minerals and supports a large population of chemoautotrophic bacteria.
The Hydrothermal Vent Crab lives in the Sunlight Zone.
A chimney like vent on the ocean floor. It is a hydrothermal vent.
Some archaebacteria, such as thermophiles, live by hydrothermal vents. They are chemoautotrophs, which means that they produce their own food using energy from the chemicals in the vents instead of using energy from the sun. The energy starts in the vent, then goes to the archaebacteria, then to the organisms that eat those archaebacteria, and so on.
nothing
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They are an undersea thermal vent or hydrothermal vent.
Yellowstone National Park
vent crab (bythograea thermydron )