An autotrophic organism living in a hydrothermal vent on the bottom of the ocean would be expected to obtain its energy through
A) chemosynthesis only.
B) photosynthesis only.
C) equal amounts chemosynthesis and photosynthesis.
D) mostly chemosynthesis, with only small amounts of photosynthesis.

Question

Quizplus · Accepted Answer

Hydrothermal vents are located deep in the ocean where sunlight does not reach, so organisms there rely on chemosynthesis, using chemicals like hydrogen sulfide, to produce energy.

An Autotrophic Organism Living in a Hydrothermal Vent on the Bottom