Final answer:
The levels of organization in the body are cells, tissues, organs, and organ systems.
Step-by-step explanation:
The correct list that demonstrates the levels of organization in the body from smallest to largest is:
- cells
- tissues
- organs
- organ systems
Cells are the basic building blocks of life.
They are organized into tissues, which are groups of similar cells that work together to perform a specific function.
Tissues then come together to form organs, which are structures made up of different types of tissues that work together to carry out particular functions.
Finally, organs combine to form organ systems, which are groups of organs that work together to perform specific functions in the body.