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SS1: BIOLOGY - 3RD TERM

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  1. Population Studies | Week 1
    3 Topics
    |
    1 Quiz
  2. Ecological Factors | Week 2
    7 Topics
    |
    1 Quiz
  3. Functioning Ecosystem I | Week 3
    4 Topics
  4. Functioning Ecosystem II | Week 4
    2 Topics
    |
    1 Quiz
  5. Relevance of Biology to Agriculture I | Week 5
    2 Topics
  6. Relevance of Biology to Agriculture II | Week 6
    3 Topics
    |
    1 Quiz
  7. Relevance of Biology to Agriculture III - Pest and Diseases of Agriculture Importance | Week 7
    5 Topics
    |
    1 Quiz
  8. Relevance of Biology to Agriculture III | Week 8
    4 Topics
    |
    1 Quiz
  9. Microorganisms Around Us | Week 9
    1 Topic
  10. Microorganisms in Action | Week 10
    6 Topics
    |
    1 Quiz
  11. Towards Better Health | Week 11
    2 Topics
    |
    1 Quiz
  12. Habitats | Week 12
    4 Topics
  13. Habitats II | Week 13
    5 Topics
    |
    1 Quiz



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Topic Content:

  • Beneficial Effects of Microorganisms
  • Harmful Effects of Microorganisms

Beneficial Effects of Microorganisms:

1. Maintenance of soil fertility and recycling of nutrients in the ecosystem. 

2. Sewage disposal: Saprophytic micro-organism decomposes sewage into harmless inorganic compounds, while the sludge is used as fertilizer.

3. Many antibiotics are produced from microbes. For example, Penicillin is produced from Penicillium.

 

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