143.Name the organisms which do not derive energy directly or indirectly from sun. (a) Chemosynthetic bacteria (b) Pathogenic bacteria (c) Symbiotic bacteria (d) Mould
Option A Chemosynthetic bacteria do not derive energy directly or indirectly from sun. The source of energy of these bacteria is inorganic substances. They utilise the energy liberated by oxidation of inorganic compounds and synthesize organic compounds.
