Biology

Past Question BIO202 2019/2020 SESSION- FUBK

Past Question BIO203 2020/2021 SESSION- FUBK

BIO202 : INTRODUCTORY ECOLOGY 

UNITS : 2

INSTRUCTIONS : Answer any five  questions, all questions carry equal marks. Illustrate your answers where necessary with large, clear and well labelled diagrams.

TIME ALLOWED : 2hrs 30mins

First Semester Examination

  1. a. Using diagrammatic illustration, describe the concept of energy flow in an ecosystem.
    b. What is the fundamental difference between food chain and food web?
  2. a. Define biogeochemical cycling and mention four (4) biogeochemical cycling you know.
    b. With the aid of a clear diagram, explain one of the biogeochemical cycles mention in (2a) above.
  3. a. What is biodiversity?
    b. Outline the importance of biodiversity in the world’s ecosystem.
  4. a Enumerate the factors affecting population size in a community.
    b. i) Define the term ecological succession.
    ii) Outline the different types of succession you know.
  5. Write notes on any three (3) of the following concepts;
    a. An ecosystem
    b. Habitat
    c. Ecological niche
    d. Community
    e. Synecology
  6. a. Define the term species richness.
    Use the following plant diversity survey data obtained from Federal University Birnin Kebbi (FUBK) main campus to answer Q6b & 6c below.
    i. vitellaria paradoxa =27;
    ii. mangifera indica =44;
    iii. parkia biglobosa =38;
    iv. anacardium occidentale =87;
    v. waltheria indica = 93.

    QUESTIONS

    b. Calculate the Simpson’s Diversity index of the plants in FUBK main campus.
    c. What is the dominant species in FUBK main campus?

  7. a. Define ecological factors.
    b. Discuss the emergent properties of a community.

See Also: Past Question BIO203 2020/2021 SESSION- FUBK

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