Page 1 - Lesson Notes
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SAI International School
                                            Subject – Biology, Class-VI
                                      Topic- The Living and the Non-living
                                Subtopic- Excretion, Reproduction, Life Span

                                                       Module- 12
                                                     Lesson Notes
              Excretion

                     o  Toxic substances are removed from the body by the process of excretion.
                     o  Undigested food is removed from the alimentary canal in the form of
                         faecesby the process of defaecation.
                     o  Excess of salt and water are removed from the body in the form of
                         urine andsweat.
                     o  Plants  also  release  carbon  dioxide  and  excess  of  water  through  the  stomata
                         inthe leaves.
                     o  Gums and resins are the other wastes released from the plants and trees.
                     o  Non-living things do not excrete.


              Rep
              rodu
              ctio
              n


                         o  A
                            l
                            l
                             living organisms reproduce to produce more of their own kind.
                         o  Animals reproduce either by laying eggs or by giving birth to youngones.
                         o  Most plants reproduce through seeds.
                         o  Non-living things do not reproduce.






















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