Where there are no distinctions of structure there are no distinctions of function.


The Principles of Biology (Volume 1), Part I, Chapter II (p. 200)


Where there are no distinctions of structure there are no distinctions of function.

Where there are no distinctions of structure there are no distinctions of function.

Where there are no distinctions of structure there are no distinctions of function.

Where there are no distinctions of structure there are no distinctions of function.