Food Chains · Botany

Which of the following would be the first link in a food chain located in the deep ocean near hydrothermal vents?

  1. Photosynthetic algae
  2. Chemosynthetic bacteria
  3. Small scavenging fish
  4. Giant tube worm colonies
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Correct answer: Chemosynthetic bacteria

In ecosystems devoid of sunlight, chemosynthetic bacteria serve as the producers. They derive energy from the oxidation of inorganic chemicals like hydrogen sulfide instead of sunlight.

Difficulty: Medium Question 18 of 19

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