Which of these models correctly identifies the most recent common ancestor diplobla Cnidaria -Lophotrochozca Ecdysozoa Deuterostomes Cridaria Lophotrochozoa Ecdysozoa Deuterostomes Cridaria -Lophotrochozca Ecdysczoa Deuterostomes Cnidaria Lophotrochozoa Ecdysozoa Deuterostomes
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- The protostome developmental sequence arose just once in evolutionary history, resulting in two main subgroups–Lophotrochozoa and Ecdysozoa. What does this finding suggest? Group of answer choices The lophotrochozoans are monophyletic. The protostomes are a paraphyletic group. Division of these two groups occurred after the protostome developmental sequence appeared. These two subgroups have a common ancestor that was a deuterostome.Which of the following does NOT occur? radially symmetrical diploblast diploblastic eucoelomate protostomic coelomate bilaterally symmetrical deuterostomeLeeches are members of the phylum _ in the clade of bilaterally symmetric animals called _ (Nematoda; ecdysozoa/platyhelminthes;Deuterostomia/Cnidaria;lophotrochozoan/annelida;lophotrochozoa)?
- For the phylum Gastrotricha please provide: - -- General biology. Approximately how large is the phylum? What do they look like? In what types of environments are they found? What do they eat? Do they have any unique body structures? --Phylum features. Protostome vs deuterostome vs?? Type of digestive system, circulation, respiration, mode of reproduction (note some of these structures may be absent or not known in which case say that don’t just leave them out). --Phylogenetic position. What other phyla are close relatives? What features do they share? Show recently accepted phylogeny.Class Gastropoda and Class Bivalvia independently evolved modifications to their body plan that allowed them to invade sandy and muddy habitats, burying their bodies under the surface and accessing the surface via siphons. For an example organism in each Class, (1) draw a diagram showing the morphological modifications and (2) write a description of how this organism had evolved from the hypothetical ancestral mollusk (HAM) body plan.Which of the following pairings is correct? Select all that apply.Check All That Apply Protostomia and Deuterostomia are both Bilaterians.Protostomia and Deuterostomia are both Bilaterians. Protostomia includes the Placozoa, Porifera, Cnidaria, and Ctenophora.Protostomia includes the Placozoa, Porifera, Cnidaria, and Ctenophora. Deuterostomia includes the Placozoa, Porifera, Cnidaria, and Ctenophora.Deuterostomia includes the Placozoa, Porifera, Cnidaria, and Ctenophora. Deuterostomia includes the Chordata, Echinodermata, and Hemichordata phyla.Deuterostomia includes the Chordata, Echinodermata, and Hemichordata phyla. Protostomia includes the Chordata, Echinodermata, and Hemichordata phyla.
- Please match the term with the description. the anterior end of a tapeworm that attaches to the inside lining of its host's digestive tract [ Choose ] [Choose] medusa describes the number of tissue layers in polyp coelom Cnidarians cnidocytes monoecious the cells that move water through a sponge gastrovascular cavity acoelom pharynx the cells that produce nematocysts scolex gonozooid osculum pseudocoelom triploblastic choanocytes diploblastic spongocoel water leaves a sponge through this opening proglottid spicule ventral sucker an incomplete digestive tract a planarian uses this to suck up food particles [ Choose ] a fluke uses this to hang onto its host's [ Choose ] tissues > > >Three major phylogenetic groups of Bilateria are currently recognized: Ecdysozoa, Lophotrochozoa, and Deuterostomia. Which of these three groups is least diverse? Where are humans?Create a cladogram summarizing the phylogenetic relationships among the different phyla. Phyla: Porifera Cnidaria Platyhelminthes Annelida Mollusca Nematoda Arthropoda Echinodermata Chordata Characters: True tissues Blastopore forms the mouth Blastopore forms anus Undergo ecdysis Notochord Mantle and muscular foot Water vascular system Trochophore Segmented jointed appendages Chitinous setae Muscles and nerves Triploblastic
- Out of all of these, which contains hox genes? Choanoflagellata Porifera Cnidaria Nematoda Arthropoda Onychophora Platyhelminthes Brachiopoda Mullusca Annelida Echinodermata Cephalochordata Urochordata Cyclostomes Chondrichthyes Osteichthyes Amphibia Reptilia MammaliaMatch the description given with either protostome or deuterostome or neither 1)spiral cleavage 2)blastopore becomes the anus 3)schizocoelous coelom formation 4)indeterminate cleavage 5)determinate cleavage 6)blastopore becomes the primitive streak 7)radial cleavage 8)enterocoelous coelom formationIs the presence of myomeres a symplesiomorphic or synapomorphic feature of vertebrates compared to conditions in other deuterostome metazoans? And are these structures symplesiomorphic, synapomorphic, or neither for vertebrates considered alone?