Choose the incorrect option. (a) Complete digestive system \( \quad- \) Two openings, mouth and ...

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Choose the incorrect option.
(a) Complete digestive system \( \quad- \) Two openings, mouth and anus
(b) Incomplete digestive system - Single opening
(c) Open circulatory system \( \quad- \) Blood is circulated through tube system
(d) Closed circulatory system \( \quad- \) Arteries, veins and capillaries are present
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