Which is most complex?(1 point)

Responses

organs

organ system

cells

tissues

The most complex would be organ systems, as they are made up of multiple organs working together to perform specific functions in the body.

In terms of complexity, the order from least complex to most complex is as follows:

1. Cells: Cells are the building blocks of all living things and are the basic unit of structure and function in organisms.
2. Tissues: Tissues are groups of similar cells that work together to carry out specific functions.
3. Organs: Organs are composed of different tissues that work together to perform specific functions within the body.
4. Organ system: Organ systems are networks of organs that work together to carry out specific functions necessary for the survival of the organism.

Therefore, the most complex out of the options listed would be the organ system.