Zool 102: Higher Invertebrates Question Paper

Zool 102: Higher Invertebrates

Course:Bachelor Of Education Science

Institution: Chuka University question papers

Exam Year:2013

CHUKA

UNIVERSITY

UNIVERSITY EXAMINATIONS
FIRST YEAR EXAMINATION FOR THE AWARD OF DEGREE OF
BACHELOR OF EDUCATION (SCIENCE) AND BACHELOR OF SCIENCE (GENERAL)

ZOOL 102: HIGHER INVERTEBRATES

STREAMS: BED, BSC (GEN) Y1S2 TIME: 2 HOURS

DAY/DATE: MONDAY 12/8/2013 2.30 PM-4.30 PM

INSTRUCTIONS:

• Answer All Questions in Section A and any Two in Section B
• Questions in each Section Carry Equal Marks.

Section A (30 Marks)

1. Describe the adaptive features of intertidal molluscs.

2. Explain features that contrast hirudinea from other annelid groups.

3. Describe the structure of an echiurid worm.

4. Compare feeding mechanisms in brachiopods and gastropods.

5. Explain gaseous exchange in terrestrial arachnids.

6. Outline the characteristics of class asteroidea.

Section B (40 Marks)

7. (a) Describe the economic importance of Annelids.

(b) Discuss the mechanisms of reproduction in oligochaetes.

8. (a) Using a diagram describe the structure of a bivalve.

(b) Compare locomotion in echinoderms and molluscs.

9. Describe the classification of chelicerata.
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