Question

Which of the following is characteristic of complex multicellularity?

a.All cells are exposed to an exterior surface.
b.The interior cells are exposed to a different physical and chemical environment than the exterior cells.
c.All cells express the same genes.
d.All cells are exposed to an interior surface.
e.All of the above are true.

Answer 1

The correct answer is option b. "The interior cells are exposed to a different physical and chemical environment than the exterior cells".

Step-by-step explanation:

Complex multicellularity is a characteristic that large organisms comprised of thousands of cells posses. The organisms with complex multicellularity have their cells organized into different tissues in a three dimensional arrangement, that often involves the development of organs. One characteristic of complex multicellularity is that the interior cells are exposed to a different physical and chemical environment than the exterior cells. For instance, skin cells have adapted to serve as a barrier to pathogen and environmental conditions, while blood cells have adapted to transport nutrients and serve in the immune system.