Levels of Biological Organization

Master the levels of biological organization! Practice identifying and ordering key concepts from cells to the biosphere.

Identify the Levels of Biological Organization represented in each image below. Tissue Organ Organism Biosphere Community System Population Ecosystem Molecules Cell Match each Level of Biological Organization with it's correct definition. Organism An individual form of life. Population A group of organisms that belong to the same species. Community A group of various organisms interacting in a common area. Ecosystem Living and nonliving components interacting in a common location. Biosphere Parts of Earth where life exists. A cell can be defined as- a group of tissues that interact to perform a function. the smallest unit that can live and function on its own. the abiotic and biotic factors found in an area. Tissues are groups of cells working collectively together to perform a function, while Organs are groups of tissues that join to form a functional unit. An organ system is defined as- A group of similar cells working together. A group of organisms that belong to the same species. A group of organs that work together to perform a specific function. Arrange the Levels of Biological Organization from most complex to least complex. Molecule Cell Tissue Organ Organ System Organism Population Community Ecosystem Biosphere