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- Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata c. Urochordata d. VertebrataCubozoans are______. a. polyps b. medusoids c. polymorphs d. spongesFigure 27.6 Which of the following statements is false? Eumetazoans have specialized tissues and parazoans don’t. Lophotrochozoa and Ecdysozoa are both Bilataria. Acoela and Cnidaria both possess radial symmetry. Arthropods are more closely related to nematodes than they are to annelids.
- Cnidocytes are found in _____. a. phylum Porifera b. phylum Nemertea c. phylum Nematoda d. phylum CnidanaFigure 15.3 Which of the following statements is false? a. Eumetazoa have specialized tissues and Parazoa do not. b. Both acoelomates and pseudocoelomates have a body cavity. c. Chordates are more closely related to echinoderms than to rotifers according to the figure. d. Some animals have radial symmetry, and some animals have bilateral symmetry.Which would be found in both flatworms and cnidarians? a digestive system with a single opening a distinct head radial symmetry dorsoventrally flattened bodies
- Which phylum of animals shows radial symmetry and has tentacles with stinging cells? Nematoda Cnidaria Porifera EchinodermataRelative to asconoid organization in sponges the syconoid form exhibits smaller body size increased spongocel volume relative to pumping surface area reduced spongocel volume relative to pumping surface area larger body sizeAnnelida and arthropoda are more complex that other, simpler invertebrate groups because they have O a body cavity O segmentation germ layers
- Which phylum is characterized by a hard, flexible exoskeleton and multiple life cycles? Echinodermata O Mollusca O Chordata O ArthropodaFlatworms show bilateral symmetry and some cephalization. True False Some parasitic platyhelminths lost their digestive tract. True False Platyhelminths can remove excess water out of the body. True FalseWhich phylum is characterized by a "tube within a tube" structure? O Echinodermata (O Mollusca O Arthropoda O Annelida