1. What characters exhibit homoplasy, and therefore may have evolved due to convergent evolution? 2. List two additional characters that are synapomorphies for bony fish. Solution 1.Homoplasy is a character shared by a set of species but not present in their common ancestor. Eye is an example of this. Eye evolved independently which is an example of convergence. 2. synapomorphies are characteristic present in an ancestral species and shared exclusively (in more or less modified form) by its evolutionary descendants. a. Unique pattern of dermal head bones, including mouth bones with rooted teeth b. Bony fin rays supporting fins.

1. 1. What characters exhibit homoplasy, and therefore may have evolved due to convergent
evolution?
2. List two additional characters that are synapomorphies for bony fish.
Solution
1.Homoplasy is a character shared by a set of species but not present in their common ancestor.
Eye is an example of this. Eye evolved independently which is an example of convergence.
2. synapomorphies are characteristic present in an ancestral species and shared exclusively (in
more or less modified form) by its evolutionary descendants.
a. Unique pattern of dermal head bones, including mouth bones with rooted teeth
b. Bony fin rays supporting fins