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No.   Section A         Section B

                (d)   Tuberculosis (iv)  Continuous vomiting and diarrhoea

                (e)                     (v)  Makes a whistling  or wheezing
                      Diabetes
                                              sound when breathing
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                (f)   Cholera           (vi)  High fever and joint pain


              Section B

               2.  What is the difference between communicable and non-

                    communicable diseases?

               3.  How are communicable diseases spread?


               4.  What does metamorphosis mean?


               5.  Give an example of an insect that goes through:

                    (a)  Complete metamorphosis; and


                    (b)  Incomplete metamorphosis.

               6.  List the stages of insect development in:

                    (a)  Complete metamorphosis; and


                    (b)  Incomplete metamorphosis.

               7.  Why  are  houseflies,  cockroaches,  and  mosquitoes
                    dangerous to human health?


               8.  What can you do to reduce housefly breeding near your
                    home?
















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     SCIENCE AND TECHNOLOGY STD 4.indd   43                                                 14/01/2025   18:38
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