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Zool 231: Arthropod Biology Question Paper

Zool 231: Arthropod Biology

Course:Bachelor Of Education Science

Institution: Chuka University question papers

Exam Year:2013

CHUKA

UNIVERSITY

UNIVERSITY EXAMINATIONS
SECOND YEAR EXAMINATIONS FOR THE AWARD OF
BACHELOR OF EDUCATION (SCIENCE)
ZOOL 231: ARTHROPOD BIOLOGY
STREAMS: BED (SCI) Y2S2 TIME: 2 HOURS
DAY/DATE: FRIDAY 26/4/2013 2.30 PM – 4.30 PM
INSTRUCTIONS:

Answer ALL Questions in Section A and any TWO from Section B

SECTION A (30 MARKS)

1. Explain the meaning of the following terms and give an example in each case.
[4 Marks]
(a) Parasitoids
(b) Tagmatization
(c) Bimarous appendages
(d) Endopterygota

2. Give the role of the following structures to the animal that possess them. [5 Marks]

(a) Chelicerae
(b) Book gills
(c) Uropods
(d) Tympanal organs
(e) Maxillipeds

3. Outline the adaptations of barnacles that enable them survive in marine ecosystem. [4 Marks]

4. Give 3 reasons that could be responsible for the success of arthropods. [6 Marks]

5. Explain how excretory and respiratory systems of arachnids preadapted them for terrestrial habitats. [5 Marks]

6. Explain briefly the following types of development.

(a) Holometabolous [2 Marks]

(b) Hemimetabolous [2 Marks]

(c) Ametabolous [2 Marks]

SECTION B (40 MARKS)

7. Discuss communication in insects. [20 Marks]

8. Discuss the role of endocrine system in the moulting process of arthropods.
[20 Marks]

9. “The evolution of flowering plants has been closely bound up with the evolution of insects”. Discuss. [20 Marks]

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Zool 231: Arthropod Biology Question Paper

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