Considering the available options, the one that is not true of organisms that engage in chemosynthesis is: "They are consumers in the marine food chain."
- This is because chemosynthesis pertains to the utilization of energy made by inorganic chemical reactions to generate food.
- This implies that the is not a consumer in the water body food chain, as they are at the lowest end.
- Chemosynthesis organisms are usually tiny bacteria.
- These organisms are usually found in areas like seafloor near hydrothermal vents, and sunken ships.
Hence, in this case, the correct answer is option C."They are consumers in the marine food chain."
Learn more here: https://brainly.com/question/18172762