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General Entomology Question Paper

General Entomology

Course:Bachelor Of Education Science

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2009/2010
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE AND BACHELOR OF EDUCATION

SZL 403: GENERAL ENTOMOLOGY

DATE: Thursday
24th December 2009
TIME: 11.00am – 1.00pm

INSTRUCTIONS
Answer ALL questions from Section A and any ONE question from Section B. Within a
section, all questions carry equal marks. Illustrate your answers with diagrams and give
examples where appropriate.

SECTION A- (40 Marks)
Answer all questions
1.
Describe briefly the principal nitrogenous excretory products eliminated by insects.
2.
Describe briefly different forms of wing coupling mechanisms in insects using named examples.
3.
Explain the economic importance of named social insects.
4.
Describe the various types of segmentation exhibited by insects indicating their significance.
5.
Using labeled diagrams only, compare the internal female and male reproductive systems of generalized insects.
6.
Explain the following terms:
a)
Apterygota
b)
Polyembryony
c)
Pheromones
d)
Nomenclature
e)
Apneustic
7.
Describe briefly five methods used in the classification of insects.
8.
Complete the table below
Location of endocrine
Hormones synthesized
Function/Action
centre
Neurohormes
e.g

Prothoracicotropic (PTTH)
Corpora allata
b)
Explain the structure of a generalized insect antenna.

SECTION B- (30 Marks) Answer ONE question
9.
Describe the functional morphology of the alimentary canal of a generalize insect.
10.
Write and essay on dispersal and migration of insects.

General Entomology Question Paper

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