Zoology First Quarter Exam
Study Guide
Date of Exam: Tuesday March 12, 2013
Format of Exam: 25 MC questions, 5 short answer questions, 1 essay question, 5 animal of the day (extra credit)
Point Value: 50 points
The following list of topics and questions are “fair game” items for the test.
Evolution
What are the basic tenets of theory of evolution?
What is a homologous structure?
Describe how biologists use homologous structures to determine evolutionary relationships.
Know how to interpret and/or construct a cladogram if provided information about specific organisms.
Taxonomy & Classification
Name the seven levels of biological classification. Which level is most inclusive? Most exclusive?
What are the rules for writing a scientific name?
Characteristics of Animals
What are the specific characteristics unique to members of the animal kingdom?
Animal Body Plans/Symmetry
What were the four major events (trends) in the evolution of animal body plans?
Name and describe the 3 major bilateral body plans. (acoelomate, pseudocoelomate, coelomate)
Name the three different cell layers found in all bilateral body plans.
Describe the difference between radial, biradial, and bilateral symmetry.
Identify the 3 different planes that are used to divide the body of a bilaterally symmetrical animal.
Distinguish between ventral & dorsal, anterior & posterior, pectoral & pelvic, medial & lateral.
Explain why bilateral symmetry and cephalization are characteristics of most actively crawling or swimming animals.
Animal Phyla
Study the table(s) of characteristics that we filled out in class. Questions concerning these phyla will focus on the major defining
characteristics of each group of animals.
Phylum Porifera
Phylum Cnidaria
Phylum Platyhelminthes
Phylum Nematoda
Phylum Annelida
Phylum Mollusca
Dissections
Questions dealing with these specimens will focus on their MAJOR characteristics. These questions will be written so that if you
were paying attention during the dissections you should reasonably be able to answer them.
Specimen
Earthworm
Clam
Squid
Important Structures/Question
crop, gizzard, nephridia, setae, clitellum
What function does the clitellum serve in the reproductive behavior of earthworms?
valves, mantle, gills, labial palps, incurrent siphon, excurrent siphon
What are the two functions that the gills serve for the clam?
mantle, funnel, arms, tentacles, ink sack, gills
Describe the locomotion of the squid. How does it propel itself through the water?