Biological Organization Levels

Levels of Biological Organization

• Cells: The fundamental units of structure and function in living things, including the human body. Each cell performs basic life processes, allowing the organism to survive.
• Tissues: Groups of similar cells that work together to perform a specific function. There are four main types of human tissue: epithelial, muscle, nervous, and connective.
• Organs: Structures composed of two or more tissue types, working together to perform a specific task. Examples include the brain, heart, lungs, skin, and kidneys.
• Organ Systems: Groups of organs that work together to carry out a complex function. Each organ in the system plays a part in the larger function.
• Organism: An individual living thing, capable of growing, metabolizing nutrients, and typically reproducing.
• Populations: Groups of organisms of the same species living in the same area and interacting with each other.
• Communities: All the populations of different species living and interacting in an area. This includes all the biotic factors in an area.
• Ecosystems: All the living organisms (populations) and the non-living aspects of their environment in a particular area.
• Biosphere: The part of Earth that supports life. It encompasses most of Earth, including portions of the oceans and the atmosphere.