There are two types of nutritions-
1) Autotrophic nutrition &
2) Heterotrophic nutrition.
In AUTOTROPHIC NUTRITION plants make their food themselves. Like- Alovera etc. While in HETEROTROPHIC NUTRITION organisms depend on other organisms to obtain their food. Like-Cuscuta, yeast, lice, bacteria etc. Heterotrophic nutrition is further divided into 3 types- Holozoic, Saprotrophic and Parasitic Nutrition.