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Zool 210:Invertebrate Zoology November 2009 Question Paper

Zool 210:Invertebrate Zoology November 2009

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2009

KABARAK UNIVERSITY
UNIVERSITY EXAMINATIONS
2009/2010 ACADEMIC YEAR
FOR THE DEGREE OF BACHELOR OF EDUCATION
SCIENCE
COURSE CODE: ZOOL 210

INSTRUCTIONS:
Answer All the questions in SECTION (A) and any two (2) questions in SECTION (B)

SECTION (A) (40 Marks)
1. Differentiate between;
a) Segmentation and tagmosis (2 Marks)
b) Medusa and polyp (2 Marks)
c) Hydrozoa and anthozoa (2 Marks)

2. State the functions of:
a) Nematocysts (2 Marks)
b) apical complex (1 Mark)
c) Pseudopondia (2 Marks)

3. Explain the evolutionary significance of
a) metamerism (2Marks)
b) coelom development (2 Marks)

4. Describe the arthropod body structure. (4 Marks)

5. Describe three
a) feeding adaptations in rotifers (3 Marks)
b) diagnostic features of flagellates (3 Marks)
c) characteristics shared by both protozoans and sponges, that reflect their common origin.
(3 Marks)

6. Describe
a) osmoregulation in fresh water amoeba (3 Marks)
b) feeding in ciliates (3 Marks)
c) the ecological and economic significance of nematode worms (3 Marks)

7. Explain how the nervous system in echinoderms differs from that of other deuterostomes.
(3 Marks)

SECTION (B) (30 Marks)
8. Describe factors that enable insects to live in many environments (15Marks)

9. Discuss the structural and functional characteristics that have guided the success of mollusks.
(15Marks)

10. Describe the role of embryology in the taxonomy of invertebrates. (15Marks)

Zool 210:Invertebrate Zoology November 2009 Question Paper

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