Question

The bacteria which are photosynthetic autotrophs are
(a) Cyanobacteria
(b) Methanogens
(c) Halophiles
(d) Thermoacidophiles

Answer 1

autotroph. An organism that manufactures its own food from inorganic substances, such as carbon dioxide and ammonia. Most autotrophs, such as green plants, certain algae, and photosynthetic bacteria, use light for energy.