Bota 120: Basic Botany Ii Question Paper
Bota 120: Basic Botany Ii
Course:Basic Botany Ii
Institution: Kabarak University question papers
Exam Year:2009
COURSE CODE: BOTA 120
COURSE TITLE: BASIC BOTANY II
STREAM: Y2S1
DAY: THURSDAY
TIME: 9.00 – 11.00 A.M.
DATE: 26/03/2009
INSTRUCTIONS
Answer All questions in Section A and Any TWO from Section B
SECTION A. (40 MARKS)
1. (a) Explain briefly the meaning of the following concepts. (5 Marks)
(b) Ecosphere
(c) Habitat
(d) Population
(e) Community
(f) Carrying capacity
2. (a) Differentiate between closed and open vegetation. (2 Marks)
(b) State three factors that cause spatial discontinuities in vegetation. (3 Marks)
(c) Explain what vegetation diversity is. (1 Mark)
(d) State three factors that cause vegetation diversity. (3 Marks)
3. Write explanatory notes on the following;
(a) Rosette plants (2 Marks)
(b) Woody plants (2 Marks)
(c) Bryophytes (2 Marks)
4. (a) Differentiate between isomorphic and heteromorphic life cycles. (2 Marks)
(b) State three differences between Bryophytes and pteridophyte. (3 Marks)
(c) State three characteristics of Gymnosperm. (3 Marks)
(d) State the three classes of Gymnosperm. (3 Marks)
5. (a) Name three by products of industrial combustion that cause air pollution. (3 Marks)
(b) Explain briefly the causes and effects of global warming. (6 Marks)
SECTION B. (30 MARKS)
6. Describe with aid of well labeled diagrams, the various life cycles of algae. (15 Marks)
7. Describe the adaptive features of insect and wind pollinated flowers. (15 Marks)
8. Discuss the causes and remedies of desertification. (15 Marks)
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