Trait 12 Trait 13 Trait 5 1 Trait 1 Trait 2 Trait 3 Trait 4 Trait 6 Trait 7 Trait 8 Trait 9 Trait 10 Trait 11 Trait 14 Trait 15 1 Cat Deer Mink Monkey Oppossum Platypus 1 Coyote Rabbit 1 1 O o o o o o o o O o o - O O o o O - O O O O - O 1.

Use the following phylogenetic tree to help determine if the provided examples below are homologous structures or analogous structures. Figure 27.10 ANCESTRAL PROTIST Metazoa 770 million years ago ©2014 Pearson Education, Inc Eumetazoa 680 million. years ago 670 million years ago Bilateria Deuterostomia Lophotrochozoa Ecdysozoa The worm shape of a hemicordata and the worm shape of a nematoda Porifera Ctenophora Cnidaria The scales of a fish (chordata) and the scales of a scaleworm (annelida) The shell of the brachiopoda and the shell of the mollusca The shell of a mollusca and the hard outer surface of the arthropods Hemichordata Echinodermata The holes in human skin (pores) and the hole in the body of a porifera Chordata Platyhelminthes Rotifera Ectoprocta Brachiopoda EXAMPLE The round shape of an Echinodermata and the round shape of a ctenophora Mollusca Annelida Nematoda Arthropoda The trochophore larval stage of a Mollusca and the trochophore larval stage of an annelida. Homologous…

Explain how phylogenetic trees are interpreted and created. Explain what types of traitsare used and some of the difficulties associated with reconstructing phylogenetichistories.

True or False