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P. 375

Reading Skill: Compare and Contrast





                                                                                                                            Compare and contrast involves showing
      Complete the table with the correct phrases.                                                                          how two or more people, things, places,


                                                                          Bacteria and Viruses                              etc. are the same (compare) or different
                                                                                                                            (contrast).

                           Compare                                                                                     Contrast




                             For fun                                                     Bacteria                                                      Viruses


         • They can both make                                         • Bacteria are.                                             • A virus is a tiny


            people sick.                                                 single-celled organisms                             .      organism that contains


         • Bacteria can grow                                          • Some bacteria are not                                          only certain parts of                            .

                inside the human                            .               harmful to humans                             .             a cell          .

              body          , and viruses are                           For example, they may                                     • Some viruses can cause


            also able to reproduce                                      help the body digest                                        lasting damage to the


            in the human body.                                          food.                                                       body.



                      single-celled organisms                                                            harmful to humans


                      inside the human body                                                              only certain parts of a cell



                                                                                                                                           Unit 11 | Bacteria and Viruses
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