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Structural Organisation in Animals

  • Animal tissues
  • Based on the function they perform, animal tissues are classified into four types.

  • Epithelial tissue

  • It forms the outer covering of the external surfaces, internal cavities, and organs of the animal body.

  • There are two types of epithelial tissues: simple epithelium and compound epithelium.

  • Simple epithelium – It is composed of single layer of cells.

    • Squamous epithelium – found in the inner lining of mouth, oesophagus, blood vessels, lung alveoli

    • Cuboidal epithelium – found in…

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