Which level of organization is seen in both arachnoidiscus ehrenbergi and the human stomach? cell tissue organ organ system

Answer;

Cell  

Explanation;

-The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

-Cell is the basic unit and building block of life. It is bound by a cell membrane, and possesses a nucleus which acts as its brain. Arachnoidiscus ehrenbergi  is an example of diatoms which are unicellular, therefore it is a cell.