(i) Arthropoda;
(ii) X- Arachnida;
Y- Insecta;
Z- Crustacea;
(iii) - Useful in plant pollination;
-Produce edible food eg. Honey and royal jelly;
(iv) –Transmits disease causing organisms/disease vector;
-Sucks blood hence can cause anemia;
-Bites on animals destroy the quality of hides and skins;
-Wounds created become avenues for secondary bacterial infection;
(v) a) Flight;……………………….presence of wings;
b) Walking;…………………….presence of legs;
sharon kalunda answered the question on May 27, 2019 at 11:04
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b) Using observable features...(Solved)
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