Question

Briefly describe the body wall of leech.

Answer 1

Body wall of leech includes five layers:

• Cuticle (outermost layer).
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• Epidermis which lies below the cuticle.
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• Dermis which lies below the epidermis formed of connective tissue.
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• Muscular layer formed of circular and longitudinal muscles.
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• Botryoidal tissue lies beneath longitudinal muscles and fills the entire coelom around the gut.
  (1 Mark)