Invertebrate Zoology

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Biology 3408 – Invertebrate Zoology - Fall 2011

Lecture M-W 11:00-12:15 WSB 101



Instructor: Dr. Chris M. Ritzi                                    Lady Jena Carey

                  Office: Warnock Science Building – 216  AHSF 124

                  Phone: 837- 8420                                      685-6454


                  Office hours: MW 9:00-10:30 AM                        MW 3-5 p.m.

                                       T 2:00 – 5:00 PM                  TR 3-5 p.m.

                                       or by appt.                            or by appt.


Class Website: http:// &


Text:  Biology of the Invertebrates.  Sixth Edition.  J. A. Pechenik


Course Description:  It is the goal of this class to focus on three aspects of invertebrate zoology. The first of these is to understand functional morphology, in terms of its effect on invertebrate life.   The second major focus is to examine life from the view of ontogeny, so to understand the importance of development. The final focus of this course is to examine the phylogeny of the invertebrates, so to see how they are related to one another.

Program Learning Outcomes

The biology student graduating with a BS in Biology should be able to:

1)                  Demonstrate a mastery of aerobic respiration and its significance for living organisms.

2)                  Be able to identify evolution and the processes that influence it.

3)                  Be able to identify the components of cell structure and their functions.

4)                  Compare the fundamental concepts of Mendelian genetics.

5)                  Compare and contrast the process of photosynthesis to other cellular processes.

6)                  Be able to identify the processes of molecular biology.


Student Learning Objectives for this Course:  The following 4 objectives will be covered over the course of the term.  The first is to introduce how invertebrates are organized, how they work, & how they reproduce.  Secondly, students should come away from this class with an understanding of the biodiversity inherent in the animal groups not including the vertebrates. Next, this course should promote an appreciation of invertebrates and their many innovations. Finally, this course should provide a foundation to the field of invertebrate zoology and any of its daughter disciplines.


Grading: Your grade will be assigned based on the percentage of points you get out of a total possible 600 points. (100pt exams (3), 100 pt quizzes (5), 200pts from lab).



Tests: There will be a total of 3 exams, each worth 100 points. Quizzes will be given throughout the semester to assess material between exams. If you miss an exam or quiz and have a legitimate excuse, contact me within 24 hours of the test and we will arrange a make-up test.  If you do not contact me within 24 hours, you will receive a zero on that exam. 


Attendance: Students missing 20% of lectures (6 lectures) OR labs (3 labs) shall be dropped from the class per the SRSU catalog.  Any student dropped for excessive absences will receive an F for the course grade.  Please notify your instructor BEFORE missing class for authorized activities, death in the family, or illness.  Exams missed for any reason must be made up within one week of the originally scheduled date.  REGARDLESS OF WHY AN ABSENCE OCCURS, YOU MAY BE GIVEN AN F FOR THE COURSE GRADE IF YOU ACCUMULATE SIX ABSENCES.


Lecture courtesy:  The general rules of classroom etiquette are below.

1)                  Please do not talk to others in class while the instructor is lecturing.  If you have a question, ASK THE INSTRUCTOR!  That’s what I’m here for.

2)                  No eating, chewing, dipping, etc.

3)                  If you are gong to attend class, please do so.  Leaving and returning to class repeatedly is disruptive, as well as showing up after half the period is over.

4)                  Please turn cell phones and pagers to silent while in class.  They are disruptive to the entire class, and distract others as well.


Students with disabilities will be provided reasonable accommodations.  If you would like to request such accommodations because of physical, mental, or learning disability, please contact the ADA Coordinator for Program Accessibility at 837-8203, FH 112.


Tentative Lecture Outline

Date                            Lecture topic                                                              Chapter

Aug 24                                    Introduction                                                                1

Aug 26                                    Introduction                                                                1

Aug 29                                    Architecture                                                                2

Aug 31                                    Phylogeny                                                                   2

Sept 2                          Development                                                               2

Sept 5                          Choanoflagellata                                                         3

Sept 7                          Porifera                                                                       4

Sept 9                          Placozoa                                                                      4

Sept 12                        Cnidaria                                                                      6

Sept 14                        Cnidaria                                                                      6

Sept 16                        Cnideria                                                                      6         

Sept 19                        Cnidaria                                                                      6

Sept 21                        Ctenophora                                                                 7

Sept 23                        Exam I

Sept 26                        Platyhelminthes                                                           8

Sept 28                        Platyhelminthes                                                           8

Sept 29                        Platyhelminthes                                                           8

Oct 3                           Mesozoa                                                                      9

Oct 5                           Nemertines                                                                  11

Oct 7                           Gnathifera                                                                   10

Oct 10                         Annelida                                                                     13

Oct 12                         Annelida                                                                     13

Oct 14                         Sipuncula                                                                    13

Oct 17                         Mullusca                                                                      12

Oct 19                         Mollusca                                                                      12

Oct 21                         Mollusca                                                                      12

Oct 24                         Lophophorates                                                                        19

Oct 26                         Lophophorates                                                                        19

Oct 28                         Exam II

Oct 31                         Onychophora & Tardigrades                                      15

Nov 2                          Origin of Arthropods                                                  15

Nov 4                          Arthropods                                                                  14

Nov 7                          Arthropoda                                                                 14

Nov 9                          Arthropoda                                                                 14

Nov 11                                    Nematoda                                                                   16

Nov 14                                    Cycloneuralia                                                              17

Nov 16                                    Cycloneuralia                                                              17

Nov 18                                    Unknown Phyla                                                          18

Nov 21                                    Thanksgiving Holidays – No Class

Nov 23                                    Thanksgiving Holidays – No Class

Nov 25                                    Thanksgiving Holidays – No Class                            

Nov 28                                    Echinodermata                                                            20

Nov 30                                    Echinodermata                                                            20

Dec 2                           Echinodermata and Hemichordata                             20 & 21          

Dec 5                           Chordates                                                                    22

Dec 7                           Chordates                                                                    23

Dec 9                           Phylogenetic Overview

Dec 14 10:15am          Final Exam for MW 11:00                              ____                ______


Note – This outline is subject to change for reasons of course interest, time constraint, or instructor whim.  The exams will be administered on the dates given, unless material relevant for a given exam has not been covered.  Under such cases, an exam may be moved a class period or two to aid in the clarity and understanding of the material.


Lecture Powerpoint Presentations


Animal Architecture

Development and Life Histories                            Lophophorata

Sponges and their Allies                                        Ecdysozoa

Cnidaria and Ctenophora                                      Cycloneuralia

Platyhelminthes                                                   The Unknown Phyla

Mesozoa                                                              Deuterostomes






Sample Questions

Quiz 1

Exams and Exercises



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