Question

Bacteria that live around deep-sea, hot-water vents obtain energy by oxidizing inorganic hydrogen sulfide belched out by the vents. They use this energy to build organic molecules from carbon obtained from the carbon dioxide in seawater. These bacteria are __________.

Answer 1

Answer:

Chemoautotrophs

Explanation:

Autotrophs are groups of organisms that are capable of manufacturing their own food (organic molecules) through the fixation of carbon dioxide. There are two types of autotrophs:

• Photoautotrophs fix carbon dioxide by using light as the energy for driving the process.
• Chemoautotrophs fix carbon dioxide by  using energy from the oxidation of inorganic molecules such as magnesium, or sulfur.

Chemoautotrophs usually inhabit extreme environment such hot vents, deep sea, etc.