Which of the following statements is false?

A. Differentiation of distinct cell types was a
key step in the evolution of complex
multicellularity.
B. Complex multicellularity involves
differentiation in space instead of time.
C. Unicellular organisms can have life cycles
where different cell types alternate in time.
D. Distinct cell fates are achieved by
switching on and off different combinations of
genes in different cells.
E. Gradients of environmental signals trigger
differentiation of cells.


A

Biology & Microbiology

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