Organic matter is produced by biological processes such as photosynthesis. Such as: plants
2. heterotrophs: Compared with autotrophs, we can only rely on absorbing organic matter to maintain life. Such as: people
1. Fungi are all heterotrophs, but they just can't make their own nutrients. Fungi of dead and decaying organisms
It is a saprophyte in heterotrophy because it gets nutrients in the body.
Most bacteria are heterotrophs, so they can't make their own nutrients. Such as bacteria and viruses that make people sick.
Parasitic microorganisms, such as fungi and saprophytic microorganisms, can destroy food (bread mold, rice)
Become spoiled, etc. Bacteria are widely distributed in soil and water, or live with other organisms.
3. Some bacteria are autotrophs and can make their own nutrients. Such as nitrifying bacteria.