Question

Which is most complex is it tissues or organs system or organs or cells

Answer 1

The most complex is the organ system. Organ systems are groups of organs that work together to perform specific functions in the body, such as the digestive system or the respiratory system. Each organ system is made up of various organs, which in turn are made up of different types of tissues, which are composed of cells. Organ systems involve the highest level of organization and coordination within the body, making them the most complex of the options listed.