• Chemosynthesis is a process in which some organisms use chemical energy instead of light energy to produce "food" Many organisms that use chemosynthesis are extremophiles, living in harsh conditions, such as in the absence of sunlight and a wide range of water temperatures, some approaching the boiling point.
  • Tubeworms have no mouth, eyes or stomach.
  • Their survival depends on a symbiotic relationship with the billions of bacteria that live inside them.
  • These bacteria convert the chemicals that shoot out of the hydrothermal vents into food for the worm.
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