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Zool 210:Invertebrate Zoology November 2010 Question Paper

Zool 210:Invertebrate Zoology November 2010

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2010

KABARAK UNIVERSITY
UNIVERSITY EXAMINATIONS
2010/2011 ACADEMIC YEAR
FOR THE DEGREE OF BACHELOR OF EDUCATION
SCIENCE
COURSE CODE: ZOOL 210

INSTRUCTIONS:

Answer ALL questions in section A and any THREE in section B

SECTION A: ANSWER ALL QUESTIONS (40 MARKS)

1. a) Define the following terms:
i) Mesoglea ii) Polyp
iii) Clitellum iii) Epimorphosis (8 marks)
b) Explain the four means of communication among insects. (4 marks)

2. Distinguish between the following terms:
a) Blind-sac and cell aggregate body plans
b) Cephalization and metamerism (8 marks)

3. State distinguishing characteristics between the following:
a) Trematods and cestods. (5 marks)
b) Arachnida and Crustacea (5 marks)

4. a) Identify the taxonomic Orders of the following insects:
i) Cockroaches ii) Termites iii) Weevils
iv) Housefly v) Wasps (5 marks)
b) State the major characteristics of Phylum Echinodermata. (5 marks)

SECTION B: ANSWER THREE QUESTIONS ONLY (30 MARKS)
5. Describe ten differences between arthropods and annelids. (10 marks)

6. a) State key characteristics of phylum nematoda (4 marks)
b) Describe the life cycle of Ascaris. (6 marks)

7. a) Draw a sketch of medusa jelly fish. (4 marks)
b) Describe the life cycle of jelly fish. (6 marks)

8. a) Draw an illustration of external anatomy of:
i) Land snail (Helix spp.)
ii) Oyster (Ostrea spp.) (6 marks)
b) List key features that distinguish classes Gastropoda and Pelecypoda.
(4 marks)

Zool 210:Invertebrate Zoology November 2010 Question Paper

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