Rootless plants are plants that do not have a root system and are able to survive without soil. Examples of rootless plants include ALGAE, MOSS, and ALGAE. ALGAE are aquatic organisms that can range from single-celled microorganisms to large seaweeds. MOSS is a type of small, soft plant that grows in clumps or mats in damp or shady locations. ALGAE are a group of aquatic photosynthetic organisms that range from single-celled diatoms to large seaweeds. All three of these rootless plants are able to survive without soil and are able to absorb nutrients from the water they live in.