Nails,horns,and hooves are composed of ........

  • A
    Chitin
  • B
    Keratin
  • C
    Both
  • D
    None of these

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Epithelial tissue is a.......

Identify the following diagram.

The mucosal lining of the oesophagus of mammals is made up of

Describe the location and function of stratified epithelium.

Assertion: The squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries.
Reason: They are found in walls of blood vessels and air sacs of lungs.

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