The following points highlight the seven modes of nutrition in protists. The modes are: 1. Photosynthetic 2. Holozoic or Zoo-Trophic 3. Saprobic or Saprotrophic 4. Parasitic 5. Mixotrophic 6. Symbiotic 7. Pinocytosis. Modes of Nutrition # 1. Photosynthetic (Holophytic): In this mode, the organisms prepare their food from CO2 and water by utilizing sunlight with the help of photosynthetic pigments [...]
In this article we will discuss about:- 1. Habitat and Habits of Dinoflagellates 2. Structure of Dinoflagellates 3. Reproduction 4. Economic Importance. Habitat and Habits of Dinoflagellates: (i) The din-flagellates are important component of phytoplankton. Most of them are marine but some occur in fresh water. Some din flagellates such as Gymnodinium and Gonyaulax grow in large number in the [...]
In this article we will discuss about:- 1. Habitat and Habits of Euglenoids 2. Structure of Euglenoids 3. Reproduction 4. Euglena—The Spindle Organism. Habitat and Habits of Euglenoids: (i) Euglenoids occur in fresh water habitats and damp soils. (ii) Euglenoids swim actively in a liquid medium with the help of their long flagellum. They can also perform creeping movements by [...]