Porifera Cnidaria Chordata DO Ctenophora Ecdysis Protostome body plan Loss of coelom Bilateral symmetry Ctenes Hemichordata Pinacocytes 10 Consider the phylogenetic tree of the 12 metazoan phyla we discussed in class throughout the term. For each of the 8 numbered branches on this tree (numbered 1-10), match a trait (i.e. character) or loss of a trait that occurred along that branch. Visceral mass Notochord Echinodermata Deuterostome Proboscis, collar, and trunk body plan Arthropoda body plan 1. 1 2 2 3. 3 5. 5 6. 6 7. 7 8. 8 9.9 Nematoda 10. 10 Annelida Rotifera Platyhelminthes

Coelom formation in Deuterostomes is ____________ whereas in Protostomes is _____________.

Although nematode worms and arthropods do not appear related, they, in fact, are. One similarity between these two groups of organisms is/are; They both have a hydrostatic skeleton They both molt They both have a segmented body plan They both have a ventral nerve cord and nerve ganglia

Three major phylogenetic groups of Bilateria are currently recognized: Ecdysozoa, Lophotrochozoa, and Deuterostomia. Which of these three groups is least diverse? Where are humans?

Leeches are members of the phylum _ in the clade of bilaterally symmetric animals called _ (Nematoda; ecdysozoa/platyhelminthes;Deuterostomia/Cnidaria;lophotrochozoan/annelida;lophotrochozoa)?

The chromatophore pigment is present in which animal group? Annelida Nematoda Cephalopods Platyhelminthes

E) SUPERGROUP UNIKONTA-importance of this group to other kingdoms? Characteristics? Group Amoebozoans: characteristics?                         Cellular slime molds- characteristics?       Plasmodial slime molds- characteristics?       Entamoebas-Characteristics?

Which of the following terms apply to the body cavity of Molluscs (except Cephalopods)? Choose all that apply. O hemocoel with a coelom persistent blastocoel O pseudocoelom/hemocoel acoelom

Place each taxonomic group with its appropriate coelom arrangement. Not triploblastic, therefore no coelom True coelomate Possible answers ⠀⠀⠀⠀ Phylum Mollusca Class Cephalopoda No Answers Chosen No Answers Chosen Phylum Annelida Phylum Platyhelmenthes Class Gastropoda Acoelomate (but triploblastic) Phylum Cnidaria No Answers Chosen Class Bivalvia Phylum Porifera