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- Figure 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 of the following is not contained in phylum Chordata? Cephalochordata Echinodermata Urochordata VertebrataWhich of the following does not occur? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostome
- Which of the following is NOT a part of the medusa form of cnidarian? Answers: Gastrodermis Tentacle Mesoglea Body stalk These are all parts of the medusa form of cnidarians.Give at least (3) body structures that are salient among these groups of animals: Protozoans Poriferan CnidariansAn unidentified animal is noted to possess the following characteristics: triploblastic eucoelomate body a cuticle that is shed via ecdysis To which of the following phyla does this organism belong? Group of answer choices A. Echinodermata B. Annelida C. Arthropoda D. Nematoda
- What best describes frogs in terms of development? They are parazoans and acoelomates They are bilateria and protostomes They are bilateria and deuterostomes They are eumetazoa and radiata..Which of the following groups includes all of the others? a. Protostomes c. Eumetazoans b. Echinoderms d. EcdysozoansImagine you come across a small worm. How can you determine whether it is a class Hirudinida or a turbellarian? Give two distinct differences between the two without naming the same structure/invisible features of each animal (e.g animal x has 2 wings, animal y has 4 wings are not distinct differences)
- There is current controversy about which group is sister to the rest of the animals. Which two of the following groups are the potential sister groups to all the other animals? a. Ctenophores b. Cnidarians c. Porifera d. Both a. and b. e. Both a. and c.Which of the following animal groups is triploblastic, has deuterostome development, and has a digestive system, a nervous system, and an excretory system, but does not have a vertebral column? the acoelomate flatworms (like the planaria) the cephalochordates (like the lancelet) the poriferans (like the calcareous sponges) the coelenterates (like the jellyfish) the agnathan fishes (like the sea lamprey)Sponges (Phylum Porifera) are the basal taxon to animals and were once thought to belong to plants. 1) Identify three characteristics that distinguish sponges from plants. 2) Identify three characteristics (present or absent) that distinguish sponges from other animal taxa.
