Experiments with ribbon worms and planaria have shown that 

A. it is easy to hybridize the two species in nature.
B. Pax6-related genes are not always required for eye regeneration.
C. the DNA of each is sufficiently similar that they can be hybridized in a lab setting.
D. their eyes are examples of convergent evolution.


D. their eyes are examples of convergent evolution.

Biology & Microbiology

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Biology & Microbiology