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Szl 101: Invertebrate Zoology Question Paper

Szl 101: Invertebrate Zoology

Course:Bachelor Of Science

Institution: University Of Nairobi question papers

Exam Year:2009

UNIVERSITY OF NAIROBI
FIRST SEMESTER EXAMINATIONS 2008/2009
FIRST YEAR EXAMINATIONS FOR THE DEGREE OF BACHELOR OF SCIENCE
SZL 101: INVERTEBRATE ZOOLOGY
Date: 12 February 2009
Time: 9:00am- 10:00am
Illustrate your answers with labeled diagrams where appropriate
Answer any ten (10) questions
1. Briefly describe asexual reproduction in protozoa.
2. Outline the differences between protostomes and deutrerostomes.
3. Give three ways in which platyhelminthes are more advanced than cnidarians.
4. Using flow diagrams only describe the life cycle of the bilharzias worm Schistosoma mansoni.
5. Using a labeled diagram illustrate the main features of a scyphozoan medusa
6. Illustrate the organization of tissues in the body wall of nematodes as seen in cross section.
7. List any five characteristics of Phylum Cnidaria
8. Explain the terms bilateral symmetry and cephalization
9. Describe the water vascular system of asteroid echinoderms
10. Describe torsion in gastropods
11. Describe the structure and function of the following:
a) Ctenidia
b) Madreporite
12. List the characteristics of phylum Annelida
13. Describe the structure of the parapodium of Nerelis and give its functions
14. Describe main morphological features of a nauplius larva and explain its subsequent development in crabs.
15. Describe the mechanism of locomotion in Lumbricus terrestris.

Szl 101: Invertebrate Zoology Question Paper

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