Which of these characters is key to the evolution of complex multicellularity?
A)cell adhesion
B)structures such as plasmodesmata or gap junctions for targeted signaling between cells
C)regulation of gene expression within and between cells
D)tissues and organs that use fluids to transport nutrients, oxygen, and molecular signals through the body
E)No one of these is sufficient without the others; complex multicellularity reflects the evolutionary accumulation of multiple characters.

Question

Quizplus · Accepted Answer

Complex multicellularity is the result of the accumulation of multiple characters, including cell adhesion, targeted signaling between cells, regulation of gene expression, and tissues and organs for transporting nutrients and signals. None of these characters could have led to complex multicellularity on their own.

Which of These Characters Is Key to the Evolution of Complex