Are chemosynthetic bacteria autotrophic or heterotrophic ?

State whether the given statements are true or false. I. Bacteria show both autotrophic and heterotrophic nutrition. II. Some of the bacteria are autotrophic. They may be photosynthetic autotrophic or chemosyntetic autotrophic. III. Heterotrophic nurition involves obtaining of readymade organic food from outside source.

Autotrophs are

Fungi are heterotrophic,

Chemosynthetic autotrophic bacteria :

Chemosynthetic bacteria obtain energy from