Numerous organisms in deep-sea thermal vents, far below the surface and away from any light, survive by harvesting the chemical energy stored in the bonds of inorganic molecules that rise from the interior of Earth.These organisms can be described as

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The organisms described in the passage are not consuming other organisms for energy (heterotrophs or carnivores) nor are they consuming plant material (herbivores). They are instead obtaining their energy from inorganic molecules, which makes them autotrophs.

Numerous Organisms in Deep-Sea Thermal Vents, Far Below the Surface