Complex multicellularity in plants and animals evolved independently. Which of the following features would you expect to be different between plants and animals because of their independent evolution of complex multicellularity?
A. The mechanism by which plants and
animals obtain energy would be expected to
be different because of the different origin of
multicellularity.
B. Cell-cell adhesion molecules would be
different in animals and plants.
C. Plants would have cell walls, but animal
cells would not.
D. A significant difference in size between the
two groups of multicellular organisms would
be expected.
B
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