Question

The primary producers of the deep-sea hydrothermal vent ecosystems are

• A. Green algae
• B. Blue green algae
  
• C. Coral reefs
• D. Chemosynthetic bacteria
  

Answer 1

The correct option is D Chemosynthetic bacteria


Hydrothermal vents

In the deep sea, there are hydrothermal vents that are ecosystems bereft of light.

There are a lot of sulphides and minerals in these vents that help in the growth of chemosynthetic bacteria.

The energy source that sustains this deep-ocean ecosystem is derived from the chemical reaction (chemosynthesis).

Final answer

(D) chemosynthetic bacteria