Saprophytic bacteria are:

Explanation

Option B is correct.Saprophytic bacteria are decomposers. Decomposers are organisms that break down dead organic matter. Saprophytic bacteria play an important role in the environment by breaking down dead plants and animals, which releases nutrients back into the soil and air. Examples of saprophytic bacteria include: Bacillus subtilis, Clostridium tetani ,Escherichia coliAutotrophs are organisms that can make their own food from sunlight and carbon dioxide. Decomposers are not autotrophs because they cannot make their own food. Parasites are organisms that live on or inside another organism and get their nutrients from that organism. Saprophytic bacteria are not parasites because they do not live on or inside another organism. Photosynthetic organisms are organisms that use sunlight to convert carbon dioxide into oxygen and carbohydrates. Saprophytic bacteria are not photosynthetic because they do not use sunlight to make their own food.