Answer:
quimioautotrophic or quimiosynthetic
Explanation:
These kind of living things are not going to use sunlight, also can use organic substances as reactants like carbon dioxide to produce their own energy products. This process in which it is used the inorganic compounds, it is called chimiosynthesis.
All these living things, live in deep places, like in this example. And they have different metabolic ways to obtain food.