Mutualism

 

This relationship shown in the image is mutualism.

Explanation:

• The bacteria use CO₂ and H₂S (from the environment) to produce carbon products (like food).

• The host snail uses these carbon products for nutrition.

• Both the snail and bacteria benefit:

  • The snail gets food from the bacteria.

  • The bacteria get a safe place to live inside the snail.

✅ Mutualism = both partners benefit.