okay i don't think you meant autoGRAPh but autoTROPH- although the autograph definition is spectacular... an autotroph is basically something that can feed itself (or possibly live all on it's own) an example: plants- they make their own food from photosynthesis and cellular respiration. us humans are not an example of an autotroph; we are heterotrophs- we depend on other things for food or we don't make our own food.
An autograph is a signature. If someone asks for your autograph they want you to sign your name on something (a piece of paper, Baseball uniform etc.).
An autotroph is an organism that creates its own food. This is done through the processes of chemosynthesis or photosynthesis.An example of an autothroph is a tree, which produces complex organic compounds (glucose) from simple inorganic substances (CO2 and H2O) using energy from sunlight.an autograph is some thing with a written name from some one.
No, bacteria are not considered autotrophs. Autotrophs are organisms that can produce their own food using sunlight or inorganic compounds as a source of energy. Bacteria are mainly classified as heterotrophs, as they obtain their energy by consuming organic matter produced by other organisms.