Final answer:
The levels of biological organization from smallest to largest are atoms, cell organelle, cells, tissue, organ, organ system, organism, population, community, ecosystem, biome, and biosphere.
Step-by-step explanation:
Biological Levels of Organization:
- Atoms
- Cell organelle
- Cells
- Tissue
- Organ
- Organ system
- Organism
- Population
- Community
- Ecosystem
- Biome
- Biosphere
The smallest level of biological organization is atoms. Atoms combine to form cell organelles such as mitochondria and chloroplasts. Multiple cell organelles make up a cell. Cells of the same type and function come together to form tissues. Different types of tissue work together to form an organ. Multiple organs work together as an organ system. All the organs together make up an organism. A group of organisms of the same species in a specific area is a population. Different populations interacting with each other make up a community. Communities, along with their physical surroundings, form an ecosystem. Ecosystems with similar climates and biomes make up a biome. The biosphere encompasses all ecosystems on Earth.