Final answer:
The levels of organization in human anatomy are arranged from the simplest to the most complex, starting with atoms, followed by molecules, organelles, cells, tissues, organs, organ systems, and culminating in the whole organism.
Step-by-step explanation:
The human body is a complex structure organized at multiple levels of increasing complexity. From the smallest chemical building blocks to the whole organism, there is a clear hierarchy in how the body is organized. At the smallest level, we have atoms which join to form molecules. These molecules then come together to create organelles, which are the components of cells. The cells are the basic units of life and group together to form tissues, which are collections of similar cells that carry out specific functions. Tissues organize into organs, like the heart or liver, which carry out particular tasks within the body. These organs work together as part of larger organ systems, such as the circulatory or respiratory systems. Lastly, these organ systems make up the entire organism, which is the complete individual.
The levels of organization in the human body, from smallest to largest, can be summarized as follows:
- Atoms
- Molecules
- Organelles
- Cells
- Tissues
- Organs
- Organ systems
- Organism