Which lists three units of an organ system in order from the simplest to the most complex?

red blood cell → heart → tissue
skeleton → bone → bone cell
muscle cell → muscle tissue → stomach
lung tissue → lung → circulatory system

Respuesta :

It’s either the muscle or lung one, however I’m leaning towards the muscle one as it starts in the most basic form, a cell, and moves forward in a steady systems

The Correct Answer on Edge:

muscle cell → muscle tissue → stomach

(I just took the quiz)