Exams

Biology 226 Home Page

SPRING 1998

FINAL EXAM

  1. [10 Points] For the animals in the following table, indicate in column 2 whether the animal is a Protostome or Deuterostome, and in column 3 whether it is Acoelomate, Pseudocoelomate, or Coelomate:

    Animal

    P/D

    A/P/C

    Sea Cucumber

     

     

    Lobster

     

     

    Rhinoceros

     

     

    Pinworm

     

     

    Acorn Worm

     

     

    Robin

     

     

    Clam

     

     

    Housefly

     

     

    Leech

     

     

    Tapeworm

     

     

     

  2. [5 Points] List four synapomorphic characters of mammals:
  3. [5 Points] In what way(s) is a four-chambered heart more suited for mammals than a three-chambered one?
  4. [5 Points] List three synapomorphic characteristics of chordates:
  5. [10 Points] Fill in the following table:

    COMMON NAME

    PHYLUM

    CLASS

    Frog

     

     

    Mussel

     

     

    Sea Anemone

     

     

    Giant Squid

     

     

    Jellyfish

     

     

    Eagle

     

     

    Professor

     

     

    Earthworm

     

     

    Liver Fluke

     

     

    Cockroach

     

     

  6. [5 Points] Why might it have been necessary to evolve the ability to excrete nitrogenous waste in an insoluble form (e.g., uric acid) before the cleidoic egg could evolve?
  7. [5 Points] Rank the following from 1 to 5 with 1 being the animal most closely related (taxonomically) to you.
  8. [10 Points] Give an example (common name only, NOT phylum) of an animal in which each of the following might be found:
  9. [40 Points] Compare and contrast [Please use the form "Both are...; they differ in..."]:
  10. [5 Points] List five adaptations of birds for flight: