Chapter Questions
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.
Figure 15.24 Which of the following statements about the anatomy of a mollusk is false?a. Mollusks have a radula for scraping food.b. Mollusks have ventral nerve cords.c. The tissue beneath the shell is called the mantle.d. The mantle cavity contains hemolymph.
Figure 15.33 Which of the following statements about common features of chordates is true?a. The dorsal hollow nerve cord is part of the chordate central nervous system.b. In vertebrate fishes, the pharyngeal slits become the gills.c. Humans are not chordates because humans do not have a tail.d. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.
Which of the following is not a feature common to most animals?a. development into a fixed body planb. asexual reproductionc. specialized tissuesd. heterotrophic nutrient sourcing
Which of the following does not occur?a. radially symmetrical diploblastb. diploblastic eucoelomatec. protostomic coelomated. bilaterally symmetrical deuterostome
Cnidocytes are found in _____.a. phylum Poriferab. phylum Nemerteac. phylum Nematodad. phylum Cnidaria
Cubozoans are _____.a. polypsb. medusoidsc. polymorphsd. sponges
Which group of flatworms are primarily external parasites of fish?a. monogeneansb. trematodesc. cestodesd. turbellarians
Crustaceans are _____.a. ecdysozoansb. nematodesc. arachnidsd. parazoans
A mantle and mantle cavity are present in ____.a. class Oligochaetab. class Bivalviac. class Polychaetad. class Hirudinea
Annelids have a _____.a. pseudocoelomb. a true coelomc. no coelomd. none of the above
Echinoderms in their larval state have ____.a. triangular symmetryb. radial symmetryc. hexagonal symmetryd. bilateral symmetry
The circulatory fluid in echinoderms is ____.a. bloodb. mesohylc. Waterd. saline
Which of the following is not a member of the phylum Chordata?a. Cephalochordatab. Echinodermatac. Urochordatad. Vertebrata
Members of Chondrichthyes differ from members of Osteichthyes by having a _____.a. jawb. bony skeletonc. cartilaginous skeletond. two sets of paired fins
Squamata includes _____.a. crocodiles and alligatorsb. turtlesc. tuatarasd. lizards and snakes
Sudoriferous glands produce _____.a. sweatb. lipidsc. sebumd. milk
Which of the following is a Monotreme?a. kangaroob. koalac. bandicootd. platypus
How are specialized tissues important for animal function and complexity?
Using the following terms, explain what classifications and groups humans fall into, from the most general to the most specific: symmetry, germ layers, coelom, embryological development.
Describe the feeding mechanism of sponges and identify how it is different from other animals.
Compare the structural differences between Porifera and Cnidaria.
Speculate as to what advantage(s) a complete digestive system has over an incomplete digestive system?
Describe a potential advantage and disadvantage of the cuticle of ecdysozoans.
Describe the morphology and anatomy of mollusks.
Sessile adult tunicates lose the notochord; what does this suggest about one function of this structure?
During embryonic development, what features do we share with tunicates or lancelets?
What can be inferred about the evolution of the cranium and the vertebral column from examining hagfishes and lampreys?
Explain why frogs are restricted to a moist environment.
Describe three adaptations that allow for flight in birds.