Tree 1 outgroup A Species Outgroup A B с B Number of toes Eye color Tail C outgroup Number of molars Total changes Number of toes 4 5 4 5 Tree 2 We have gathered some morphological data on three species of mythical mammals and the outgroup; these data are presented in the table below. B Tree 1 2 1 2 2 7 C Eye color Brown Blue Blue Blue A outgroup с Tree 3 Now our task is to discover which of the three trees above is the most parsimonious, representing the most likely pathway of evolution. We determine the best tree by fitting the data in the table to each tree and calculating the number of evolutionary changes that are required. To facilitate our calculations, we will use the table below. The numbers in the table indicate the number of evolutionary changes that are required for each character in each tree. Tree 2 1 1 1 1 4 Tail Present Absent Present Absent A Number of molars 12 10 12 10 Tree 3 2 1 2 2 7 B

Tree 1 outgroup A Species Outgroup A B с B Number of toes Eye color Tail C outgroup Number of molars Total changes Number of toes 4 5 4 5 Tree 2 We have gathered some morphological data on three species of mythical mammals and the outgroup; these data are presented in the table below. B Tree 1 2 1 2 2 7 C Eye color Brown Blue Blue Blue A outgroup с Tree 3 Now our task is to discover which of the three trees above is the most parsimonious, representing the most likely pathway of evolution. We determine the best tree by fitting the data in the table to each tree and calculating the number of evolutionary changes that are required. To facilitate our calculations, we will use the table below. The numbers in the table indicate the number of evolutionary changes that are required for each character in each tree. Tree 2 1 1 1 1 4 Tail Present Absent Present Absent A Number of molars 12 10 12 10 Tree 3 2 1 2 2 7 B

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter27: Introduction To Animal Diversity

Section: Chapter Questions

Problem 12RQ: As with the emergence of the Acoelomorpha phylum, it is common for data to misplace animals in close...

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Tree 1 Tree 2 Tree 3 outgroup В C outgroup В outgroup A В We have gathered some morphological data on three species of mythical mammals and the outgroup; these data are presented in the table below. Species Number of toes Eye color Tail Number of molars Outgroup 4 Brown Present 12 A Blue Absent 10 B Blue Present 12 C 5 Blue Absent 10 Now our task is to discover which of the three trees above is the most parsimonious, representing the most likely pathway of evolution. We determine the best tree by fitting the data in the table to each tree and calculating the number of evolutionary changes that are required. To facilitate our calculations, we will use the table below. The numbers in the table indicate the number of evolutionary changes that are required for each character in each tree.