Which of These Characters Is Key to the Evolution of Complex

question 22

Multiple Choice

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.

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