which lists three units of an organ system in order from the simplest to the most complex?\no red blood cell…

which lists three units of an organ system in order from the simplest to the most complex?\no red blood cell → heart → tissue\no skeleton → bone → bone cell\no muscle cell → muscle tissue → stomach\no lung tissue → lung → circulatory system
Answer
Brief Explanations:
In biological organization, cells are the basic unit, tissues are groups of similar - cells, and organs are made up of different tissues. A muscle cell is a single cell, muscle tissue is a group of muscle cells, and the stomach is an organ made of different tissues. The first option has the wrong order as tissue is more complex than a single cell. The second option has the wrong order from complex to simple. The fourth option has an incorrect combination as lung tissue and lung are part of the respiratory system, not the circulatory system.
Answer:
muscle cell → muscle tissue → stomach