Organisms living near hydrothermal vents get their energy from where?

Answer 1

The organisms living near hydro thermal vents are cold blooded animals whose body temperature does fluctuate as per the environment. There thermo regulatory receptors are missing and they do not posses any control over their body temperatures.

Answer 2

it is a type of chemical that algae force out (I know it sounds disgusting but that's what it says in my book) !

Answer 3

chemical nutrients from Earth's interior

Answer 4

sulfur

Answer 5

Sulfur.