"The Amoeba Sisters: Biological Levels in Biology--The World Tour" is an educational video exploring the concept of biological levels of organization. As part of "The Amoeba Sisters" series, it introduces viewers to key biological concepts, including the cellular level, tissues, organs, and ecosystems. The video highlights how these levels interact within biological systems and emphasizes the importance of understanding these interactions for comprehending life as a whole. Through engaging visualization, it discusses how cells form tissues, tissues build organs, and organs constitute organ systems leading to complex organisms. Finally, it extends to broader concepts like populations, communities, and the biosphere. This video is valuable for its clear explanation of fundamental biology concepts essential for educational curricula.