Understand what a unicellular organism is by learning the unicellular definition. Explore the characteristics of unicellular organisms and discover examples.

What is a protist? Learn about protists, whether protists are unicellular or eukaryotic, and protists' names while reviewing examples of unicellular protists.

Explore the world of unicellular organisms in this informative video lesson. Discover their unique characteristics and see real-life examples, followed by a quiz.

Algae are eukaryotic, photosynthetic, unicellular, or multicellular organisms. They are not true plants and are generally found living in aquatic or moist habitats. Why are algae formed?

An amoeba (pronounced a-meeba) is a unicellular, eukaryotic organism (meaning it has a nucleus enclosed within an envelope) that lacks a fixed body shape and moves and eats using …

Euglena are unicellular microorganisms in the kingdom Protista, also referred to as protists. Euglena are typically found in damp and aquatic (fresh and saltwater) environments. Euglena …

About This Quiz & Worksheet Unicellular organisms are uniquely designed to carry out all of the necessary life functions as a single-celled individual.

Understand what diatoms are by learning the diatoms definition. Learn more about diatoms characteristics, classification, types of diatoms, and...

View examples of multicellular organisms. Study multicellular organism pictures of plants and animals. Review multicellular autotrophs and heterotrophs.

Explore the characteristics of autotrophic protists. Learn the background of protists, including whether protists are photosynthetic, and view examples of protists.