Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 11 PCB Single Correct MCQ
Published on: August 13, 2026

The primary producers of the deep-sea hydrothermal vent ecosystem are:

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

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Verified by Experts
The correct answer is:
C

Chemosynthetic bacteria- They use chemical energy from the minerals ejected by the hydrothermal vents to produce organic compounds, forming the base of the food web in these extreme environments.
Coral reefs : These are heterotrophs as they depend on other oragnisms for the food.
Green algae : These are the photoautrops i.e. they produce there food via photosynthesis.
Blue-green algae : These are also autotrophs and produce there own food.

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