Biology 1402 Exam 2 (Part 3)

60 Questions | Total Attempts: 45

SettingsSettingsSettings
Please wait...
Biology Exam Quizzes & Trivia

Questions and Answers
  • 1. 
    All of the following are true about sea stars except
    • A. 

      They are the most familiar echinoderms.

    • B. 

      They are the most important predators in many marine ecosystems.

    • C. 

      They have a pigmented epidermis.

    • D. 

      They are the only echinoderms that are fully sessile.

    • E. 

      DNA studies can be used to make all of the following conclusions except that A. the gibbon ape line diverged about 15 million years ago. B. orangutans split off about 10 million years ago. C. gorilla lineage diverged about 8 million years ago. D. chimpanzee line diverged less than 6 million years ago. modern man remained changeless for the last 1 million years.

  • 2. 
    In many echinoderms respiration and waste removal take place by means of finger-like projections that occur near the spines, which are called
    • A. 

      Madreporite.

    • B. 

      Ampulla.

    • C. 

      Nerve ring.

    • D. 

      Papulae.

    • E. 

      Endoskeleton.

  • 3. 
    Reproductive modes of echinoderms include all of the following except
    • A. 

      Breaking into parts and regenerating new animals from them.

    • B. 

      Breaking into equal parts which become two whole animals.

    • C. 

      Developing from trochophore larvae.

    • D. 

      External sexual reproduction produces fertilized eggs.

    • E. 

      Fertilized eggs develop into free-swimming, bilaterally symmetrical larvae.

  • 4. 
    All of the following are examples of echinoderms except
    • A. 

      Sea cucumbers.

    • B. 

      Brittle stars.

    • C. 

      Sand dollars.

    • D. 

      Sea squirts.

    • E. 

      Sea daisies

  • 5. 
    Which choice is correct for the movement of water through the water vascular system of a sea star?
    • A. 

      Madreporite --> stone canal --> lateral canal --> ring canal --> radial canal --> tube foot

    • B. 

      Madreporite --> lateral canal --> ring canal --> radial canal --> stone canal --> tube foot

    • C. 

      Madreporite --> stone canal --> ring canal --> lateral canal --> radial canal --> tube foot

    • D. 

      Madreporite --> stone canal --> ring canal --> radial canal --> tube foot

    • E. 

      Madreporite --> stone canal --> radial canal --> ring canal --> tube foot

  • 6. 
    All echinoderms share the following characteristics except  
    • A. 

      Bilateral symmetrical larvae.

    • B. 

      Radial symmetrical adults.

    • C. 

      Regeneration of a lost body part.

    • D. 

      Pentamerous body plan

    • E. 

      Larvae are sedentary, adults are plantonic.

  • 7. 
    Which one of the following incorrectly matches a molluscan structure with its typical function?
    • A. 

      Ctenidia—secretion of the shell (when present)

    • B. 

      Visceral mass—houses organs of digestion, excretion, reproduction

    • C. 

      Foot—locomotion

    • D. 

      Nephrostome—collection of nitrogenous wastes

    • E. 

      Radula—feeding organ

  • 8. 
    Which one of the following incorrectly matches a molluscan group with a feature characterizing that group?
    • A. 

      Gastropoda—torsion

    • B. 

      Nudibranchs—extensive gills in mantle cavity

    • C. 

      Bivalvia—reduced head and no radula

    • D. 

      Polyplacophora—eight calcareous plates

    • E. 

      Cephalopoda—closed circulatory system

  • 9. 
    Which one of the following annelid structures or events is not correctly paired with its role in locomotion?
    • A. 

      Circular muscles contract—segment becomes thin and long

    • B. 

      Longitudinal muscles contract—segment becomes thick and short

    • C. 

      Fluid in coelom—provides a hydrostatic skeleton

    • D. 

      Deleted

    • E. 

      Chaetae—provides gas exchange surface for body muscles

  • 10. 
    Which one of the following statements about the phylum Brachiopoda is false?
    • A. 

      Brachiopods are often misidentified as bivalves.

    • B. 

      Brachiopods were much more diverse in the past.

    • C. 

      As in bivalves, the valves in brachiopods are lateral (left and right) to the body axis.

    • D. 

      Most brachiopods are sessile (attached).

    • E. 

      The lophophore resides within the brachiopod's shells.

  • 11. 
    If you arranged the following parts of the echinoderm water vascular system from outside to its termination in a tube foot, which structure would be encountered third?
    • A. 

      Stone canal

    • B. 

      Radial canal

    • C. 

      Ampulla

    • D. 

      Madreporite

    • E. 

      Ring canal

  • 12. 
    Which one of the following choices does not describe an advantage of the chitinous exoskeleton found in arthropods?
    • A. 

      Offers some protection

    • B. 

      Reduces water loss

    • C. 

      Allows for muscle attachment sites inside the skeleton

    • D. 

      Does not impose limitations on body size

    • E. 

      Provides a strong, flexible framework

  • 13. 
    Which one of the following associations between structures and arthropod groups possessing them is incorrect?
    • A. 

      Malpighian tubules—adult insects

    • B. 

      Book lungs—larval insects

    • C. 

      Uropods—decapod crustaceans

    • D. 

      Spinnerets—spiders

    • E. 

      Chelicerae—horseshoe crabs

  • 14. 
    The mucous sheet produced by the endostyle traps the microscopic food particles in the water. This sheet is located in the pharynx of what animal?
    • A. 

      Arrow worm

    • B. 

      Tunicate

    • C. 

      Acorn worm

    • D. 

      Lancelet

    • E. 

      Crinoid

  • 15. 
    Small, fishlike marine chordates, pointed at both ends with no distinguishable head, in which the notochord runs the entire length of the nerve cord, are called
    • A. 

      Arrow worms.

    • B. 

      Tunicates.

    • C. 

      Acorn worms.

    • D. 

      Lancelets.

    • E. 

      Lampreys.

  • 16. 
    Most bony fishes have a hard plate that covers the gills on each side of the head called the
    • A. 

      Radula.

    • B. 

      Pharyngeal slits.

    • C. 

      Lateral lines.

    • D. 

      Operculum.

    • E. 

      Gill arches.

  • 17. 
    One of the most critical adaptations of the reptiles in relation to their life on land is the evolution of the
    • A. 

      Amniotic egg.

    • B. 

      Allantois egg.

    • C. 

      Chorionic egg.

    • D. 

      Diploid egg.

    • E. 

      Swim bladder.

  • 18. 
    Birds, like mammals, can regulate their body temperatures within close limits. Therefore birds and mammals are called
    • A. 

      Ectothermic.

    • B. 

      Poikilothermic.

    • C. 

      Endothermic.

    • D. 

      Heterothermic.

    • E. 

      Warm-blooded.

  • 19. 
    Which of the following is considered the key innovation that started chordates along the evolutionary path that led to vertebrates?
    • A. 

      A flexible rod to which muscles are attached which allowed moving their backs laterally

    • B. 

      An internal endoskeleton development

    • C. 

      A skin covering the entire body to prevent desiccation

    • D. 

      A hard shell encasing the body

    • E. 

      Amniotic egg

  • 20. 
    The chordates include all of the following except
    • A. 

      Amphioxus.

    • B. 

      Echinoderms.

    • C. 

      Mammals.

    • D. 

      Birds.

    • E. 

      Amphibians.

  • 21. 
    Chordates have all the following characteristics at some time in their lives except
    • A. 

      A nerve cord.

    • B. 

      A notochord.

    • C. 

      Pharyngeal slits.

    • D. 

      A postanal tail.

    • E. 

      An endostyle.

  • 22. 
    Which one of the following is not true about tunicates?
    • A. 

      Adult forms are sessile and filter feeding.

    • B. 

      Adult forms secrete a tunic composed mainly of cellulose.

    • C. 

      Adult forms are not segmented.

    • D. 

      Larval forms show all chordate characteristics.

    • E. 

      Larval forms feed actively.

  • 23. 
    In addition to a vertebral column, all vertebrates have
    • A. 

      A distinctive head or skull.

    • B. 

      An open circulatory system.

    • C. 

      Gills.

    • D. 

      Scales.

    • E. 

      A tunic.

  • 24. 
    It is generally accepted that the vertebrates that evolved during the early Devonian period are the 
    • A. 

      Sharks and bony fish.

    • B. 

      Hominoids.

    • C. 

      Birds.

    • D. 

      Dinosaurs.

    • E. 

      Mammals.

  • 25. 
    Amphibians are thought to have evolved from
    • A. 

      Ray-finned fish.

    • B. 

      Lobe-finned fish.

    • C. 

      Spiny fish.

    • D. 

      Skates and rays.

    • E. 

      Annelids.

Back to Top Back to top