Excretion & Homeostasis

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Topic Objectives

By the end of the topic, the learner should be able to:

  • Distinguish between excretion and egestion
  • Explain the necessity for excretion in plants and animals
  • State the uses of excretory products of plants
  • Describe the methods of excretion in a named unicellular organism
  • Relate the structures of the human skin, lungs, liver and kidney to their functions name common kidney diseases
  • Explain the concept of internal environment and homeostasis
  • Compare responses to changes in temperature by behavioural and physiological methods in animals
  • Relate heat loss to body size in animals
  • Describe methods by which mammals gain and lose heat
  • Explain how the functions of the following relate to homeostasis – skin, hypothalamus, liver and kidney
  • Discuss the role of antidiuretic hormone, insulin and glucagon
  • Describe simple symptoms of Diabetes mellitus and Diabetes insipidus.
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Unit Includes

  • 7 Lessons
  • 1 Quiz
  • Unit Certificate
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