Question

Select odd one(w.r.t. heterotrophic bacteria)

• A. Saprophytic bacteria
• B. Chemosynthetic bacteria
• C. Parasitic bacteria
• D. Symbiotic bacteria

Answer 1

The correct option is B Chemosynthetic bacteria

Chemosynthetic bacteria are autotrophic as they can prepare their own food from simple chemical substances.

Saprophytic bacteria feeds on dead and decaying matter.

Parasitic bacteria lives on a host to derive nutrition.

Symbiotic bacteria derives nutrition as a mutual benefit from another organisms.

Saprophytic, Parasitic and Symbiotic are all heterotrophic bacteria and hence the odd one out is Chemosynthetic bacteria.

So the correct answer is ' Chemosynthetic bacteria'.