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Szl 101: Invertebrate Zoology Question Paper

Szl 101: Invertebrate Zoology

Course:Bachelor Of Science In Biology

Institution: University Of Nairobi question papers

Exam Year:2012

UNIVERSITY OF NAIROBI

FIRST SEMESTER EXAMINATIONS

FIRST YEAR EXAMINATIONS FOR THE DEGREE OF BACHELOR OF SCIENCE (BIOLOGY)

SZL 101: INVERTEBRATE ZOOLOGY

JANUARY 26, 2012 TIME 9 A.M.- 11.00 A.M.

INSTRUCTIONS

ANSWER ANY TEN QUESTIONS. EACH ANSWER IS 7 MARKS.

1. Explain the terms:-
a) Species Concept
b) Binomial Nomenclature

2. Distinguish between deuterostomes and protostomes.

3. Using a flow diagram outline the life cycle of Schistosoma mansoni.

4. Describe structure and function of choanocyte cells of porifera.

5. Describe the different physiological types of sponges.

6. Draw and label morphological features of a cnidarian polyp.

7. Describe the distinguishing features of phylum apicomplexa.

8. a) Give the distinguishing features of the phylum echirnodermata.

b) Name four classes of phylum echirnodermata.

9. Using a well labelled diagram, illustrate the typical circulatory system of molluscs.

10. List ten features of arthropods.

11. a) State the functions of the water vascular system of asteroid echirnoderms.

b) Name five canals that make up the water vascular system of asteroid echirnoderms.

12. Illustrate a typical biramous appendage using a fully labelled diagram and name two functional modifications of this appendage in the abdominal region of the freshwater crayfish.

13. Give the functionalroles of each of the following annelidan features:

a) Parapodium
b) Coelomic fluid

14. With the aid of a labelled diagram, illustrae the structure of the arthropod
exoskeleton.

15. List the characteristic features of the phylum annelida.

Szl 101: Invertebrate Zoology Question Paper

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