EVERYDAY SCIENCE

Detailed explanation-1: -Protists are unicellular or multi-cellular micro organisms. These organisms are eukaryotic which means that they have a true nucleus and membrane bound organelles. Some examples of protists are Euglena, Paramecium.

Detailed explanation-2: -Protists range from single-celled amoebas to multicellular seaweed. Protists may be similar to animals, plants, or fungi.

Detailed explanation-3: -Protozoans are often referred to as animal-like protists and live in freshwater or saltwater. Protozoa are single-celled and can be parasitic, meaning they use other organisms to survive. Protozoans often have characteristics of being heterotrophic and free moving.

Detailed explanation-4: -Although the majority of protists are unicellular, some are multicellular organisms. One notable example is the giant kelp, which is a type of brown algae and can reach lengths of up to 65m (215 feet). Other examples of multicellular protists include seaweeds, such as red algae and green algae.

Detailed explanation-5: -Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast.