LIFE SCIENCE

Detailed explanation-1: -Chemoautotrophs, for instance, are organisms that perform chemosynthesis. They include certain groups of bacteria such as sulfur-oxidizing gamma proteobacteria, epsilon proteobacteria, and neutrophilic iron-oxidizing bacteria, and certain archaea such as methanogenic archaea.

Detailed explanation-2: -Chemosynthetic bacteria are autotrophic or photosynthetic bacteria. These bacteria can oxidize inorganic substances to produce their food. Chemosynthetic bacteria recycle nutrients such as nitrogen, phosphorus, iron, and sulfur and provide help in the ecosystem.

Detailed explanation-3: -Answer:Chemosynthetic autotrophic bacteria use inorganic molecules as a source of energy and convert them into organic substances by oxidation. These bacteria use inorganic substances because of the absence of sunlight.