Deep sea bacteria chemosynthesis

27.12.2001  –  3 kommentar

Deep sea - wikipedia

The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more. Little or no light penetrates this part of the ocean, and most of the organisms that live there rely for subsistence on falling organic matter produced in the photic zone.A deep sea community is any community of organisms associated by a shared habitat in the deep sea. Deep sea communities remain largely unexplored, due to the technological and logistical challenges and expense involved in visiting this remote biome.Deep-sea vent: Deep-sea vent, hydrothermal (hot-water) vent formed on the ocean floor when seawater circulates through hot volcanic rocks, often located where new oceanic crust is being formed.Explore how the 1977 discovery of hydrothermal vent ecosystems in the deep ocean shocked scientists and redefined our understanding of the requirements for life.Prokaryotes play several roles in the nitrogen cycle. Nitrogen-fixing bacteria (in the soil and within the root nodules of some plants) convert nitrogen gas in the atmosphere to ammonia.Travel to a world of perpetual night--the deep ocean hydrothermal vents near the Galapagos Rift where life thrives around superheated water. What's living in the deep off T&T.Preface - the Sea and Genesis of Life. Any consideration of the geological history of earth as it pertains to the genesis and evolution of life, that is, to paleobiology, must hold the sea as centric.‘Big Picture’ is a free and impartial educational resource for biology teachers and students exploring the innovations and implications of cutting-edge science.The first living organisms on Earth were bacteria. These small organisms still exist today and are responsible for many things.


Vindhya basin dating back to 1. Proterozoic, immediately preceding the. Life began in the sea, and most extant life yet exists in the sea.

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