chemicals
Ancient bacteria can live in very extreme environments. often with little or no oxygen. true bacteria can not do this. Ancient bacteria are often found in hot sulfur springs, muddy environments such as mudflats and swamps, and places deep in the ocean where lava and hot water seep through cracks on the ocean floor. But true bacteria are found EVERYWHERE except extreme environments.
Biota that live in extreme environments are known as extremophiles. They have evolved to like these conditions. Black Smokers in the ocean floor, are surrounded by such organisms - in that case, of ones that can survive without light and oxygen.
Well fish poo does.
Yes, polyps typically live close to the surface of the water on the ocean floor or on rocks in coral reefs. They use their tentacles to capture food particles from passing water.
Archaebacteria called extremeophiles have some species that live entirely anaerobically. Bacteria [and other organisms] that respire using O2 as the 'final' electron acceptor are termed to be Aerobic, while bacteria [and the odd organism] that has the biochemical capacity to Live without O2 are termed to be Anaerobic.
Decaying matter
marine organisms
Yes, they do live in den's near the ocean floor!
Certain bacteria live in hydrothermal vents on the ocean floor or in oil reservoirs within Earth at temperatures as high as 250oF.
thermoacidophile
any space of ocean floor
Starfish live in every ocean but the arctic ocean, they live on the sea floor and stick to rock and coral :)
Yes
On the ocean floor
No
they live on the floor of the ocean . The ocean it lives on is the irish sea:0
both