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| Phylum Arthropoda (Animals with Jointed Legs) |
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| Butterfly |
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 This is the largest phylum with almost 80% of the animals kingdom in this phyla. |
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 Body is bilaterally symmetrical and segmented. It is divided into head, thorax and abdomen. |
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 Possess jointed legs which may be modified for walking, swimming feeding and feeling. |
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 Exoskeleton is chitinous which is shed periodically by moulting. |
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 Body cavity is reduced and filled with blood (haemocoel). |
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 Respiration is by lungs, book lung and trachea. |
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| Example: Apis (honey bee), Aranea (Spider), palaemon (prawn), |
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| Scolopendra (Centipede) |
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