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SS2: BIOLOGY - 1ST TERM

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  1. Classification of Plants | Week 1
    3 Topics
    |
    2 Quizzes
  2. Digestive System I | Week 2
    4 Topics
    |
    1 Quiz
  3. Digestive System II | Week 3
    4 Topics
    |
    1 Quiz
  4. Transport System I | Week 4
    5 Topics
    |
    1 Quiz
  5. Transport System II | Week 5
    3 Topics
  6. Transport System III | Week 6
    1 Topic
  7. Mechanism of Transportation in Higher Animals | Week 7
    3 Topics
    |
    1 Quiz
  8. Transport in Plants | Week 8
    2 Topics
  9. Experiment to Demonstrate the Flow of Materials in Plants | Week 9
    2 Topics
    |
    1 Quiz
  10. Respiratory System | Week 10
    2 Topics

Quizzes

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Topic Content:

  • Structure of the Heart
The Heart

The heart is a muscular pumping organ. It is roughly the size of a man’s closed fist. The heart is enclosed in a pericardial sac. 

The mammalian heart is divided into four chambers. The right and the left atria (single. atrium), are the upper chambers, and the right and left ventricles are the lower chambers.

A central wall known as the septum separates the right and left sides of the heart.

 

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