for an individual crustacean, segments that have different types of appendages have the same ubx dna sequences in their respective cells. [ choose ] based on the relationships in the phylogenetic tree above, there is only one possible scenario for the evolution of feeding appendages - that first one, then two, then three feeding appendages arose. [ choose ] the phylogenetic tree provides support for three feeding appendages resulting in higher fitness than two feeding appendages. [ choose ] all mutations that occur in an individual of species a will be passed down to its offspring.