How do organisms in deep ocean obtain energy without sunlight?

Given energy, though, organisms can do the extraction work. How cells manage to survive without the Sun. You ask specifically about those animals that live in the deep dark of rock or sea. These creatures, over millions of years, evolved to use energy supplied from our planet rather than our sun. read more

Pressure is the greatest environmental factor acting on deep-sea organisms. In the deep sea, although most of the deep sea is under pressures between 200 and 600 atm, the range of pressure is from 20 to 1,000 atm. Pressure exhibits a great role in the distribution of deep sea organisms. read more