Overview Of Invertebrates Chapter 27

29 Questions | Total Attempts: 148

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Overview Of Invertebrates Chapter 27

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Questions and Answers
  • 1. 
    The cells of all animals are organized into structural and functional units called tissues, EXCEPT:
    • A. 

      Sponges

    • B. 

      Cnidarians

    • C. 

      Flatworms

    • D. 

      Roundworms

  • 2. 
    Animals that haver their body parts arranged around a central point are said to be
    • A. 

      Asymmetric

    • B. 

      Radially symmetric

    • C. 

      Bilaterally symmetric

    • D. 

      Spherically symmetric

  • 3. 
    Sponges digest their food
    • A. 

      In the coelum

    • B. 

      Extracellularly outside the body

    • C. 

      Extracellularly

    • D. 

      Intracellulary

  • 4. 
    Cnidarians digest their food
    • A. 

      In the coelum

    • B. 

      Extracellularly outside the body

    • C. 

      Extracellularly in a digestive cavity

    • D. 

      Intracellularly

  • 5. 
    An animal in which the gut is completely surrounded by tissues and organs is called a(n)
    • A. 

      Acoelomate

    • B. 

      Pseudocoelomate

    • C. 

      Coelomate

    • D. 

      Vertebrate

  • 6. 
    An animal whose gut has only one opening is the
    • A. 

      Flatworm

    • B. 

      Roundworm

    • C. 

      Snail

    • D. 

      Leech

  • 7. 
    The development of a coelom occured first in the
    • A. 

      Chordates

    • B. 

      Arthropods

    • C. 

      Annelids

    • D. 

      Mollusks

  • 8. 
    Animal whose basic body plan can be described as "a tube within a tube" are the
    • A. 

      Mollusks

    • B. 

      Annelids

    • C. 

      Flatworms

    • D. 

      Roundwroms

  • 9. 
    The first animals with jointed appendages were the
    • A. 

      Mollusks

    • B. 

      Annelids

    • C. 

      Arthropods

    • D. 

      Chordates

  • 10. 
    An animal whose mouth develops from the blastopore is called a
    • A. 

      Deuterostome

    • B. 

      Protostome

    • C. 

      Cephalostome

    • D. 

      Pseudocoelom

  • 11. 
    Chordates share all of the following characteristics EXCEPT
    • A. 

      A dorsal hollow nerve cord

    • B. 

      A notochord

    • C. 

      Pharyngeal slits

    • D. 

      A water vascular system

  • 12. 
    Most animals reproduce asexually
    • A. 

      True

    • B. 

      False

  • 13. 
    The bodies of sponges completely lack symmetry
    • A. 

      True

    • B. 

      False

  • 14. 
    All animals have tissues
    • A. 

      True

    • B. 

      False

  • 15. 
    Most bilaterally symmetric animals have evolved a definite head end through a process called cephalization
    • A. 

      True

    • B. 

      False

  • 16. 
    A pseudocoelum is a body cavity located between the endoderm and the mesoderm
    • A. 

      True

    • B. 

      False

  • 17. 
    Roundworms have muscle tissues and a gut with only one opening
    • A. 

      True

    • B. 

      False

  • 18. 
    Mollusks have segmented bodies
    • A. 

      True

    • B. 

      False

  • 19. 
    Annelids have a well-developed cerebral ganglion, or brain, in one of their anterior segments
    • A. 

      True

    • B. 

      False

  • 20. 
    Arthropods have an exoskeleton, a rigid external shell made of a substance called chitin
    • A. 

      True

    • B. 

      False

  • 21. 
    In deuterostomes the mouth develops from, or near, the blastopore
    • A. 

      True

    • B. 

      False

  • 22. 
    Echinoderms were the first animals to develop an endoskeleton
    • A. 

      True

    • B. 

      False

  • 23. 
    A(n)   blank     is a collection of different tissues that work together as a unit to perform a particular function
  • 24. 
    Both cnidarians and ctenophores have a     blank    body structure
  • 25. 
    Blank   are unique flagellated cells that line the internal body cavity of the sponge
  • 26. 
    All animals other than    blank    are know as eumetazoans
  • 27. 
    A    blank (two words)    is a network of vessels that carries fluids to all parts of the body
  • 28. 
    Leeches have a well-developed gut that includes a food storage area called a     blank   
  • 29. 
    Each segment of an annelid has a pair of excretory organs called     blank