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Zool 102: Higher Inverterbrates Question Paper

Zool 102: Higher Inverterbrates 

Course:Bachelor Of Science

Institution: Egerton University question papers

Exam Year:2012



SECTION I: ANSWER ALL QUESTIONS

1.(a) Outline the distinguishing features of echinoderms. (5 Marks)
(b) Describe the circulatory system and state the respiratory pigments in mollusks. (5 Marks)
2.(a) Define the term regeneration and outline the regeneration potential in the
various classes of annelids. (5 Marks)
(b) Outline the distinguishing features of the class Bivalvia. (5 Marks)
3.(a) Outline the differences between the classes Hirudinea and Polychaeta. (5 Marks)
(b) Describe the classification of invertebrates based on their body cavity. (6 Marks)
4. Using specific examples outline the diversity in insect wings. (8 Marks)
5.(a) Compare the structures of the endoskeleton in echinoderms. (6 Marks)
(b) Distinguish between sea cucumbers and other echinoderms. (5 Marks)

SECTION II: ANSWER ONE QUESTION ONLY

6. Discuss the economic importance of annelids. (20 Marks)
7. Using examples discuss how predatory arthropods are morphologically adapted for
this kind of feeding. (20 Marks)




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