economic importance of phylum chordata
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a) Super-class: Pisces.
Marine food products have great commercial value like fishes, cod liver oil, etc.
b) Super-class: Mammals.
Animals like horse, donkey, mule, bull, etc are used as a means of transport, farming, carry luggage, etc. Cow, goat, buffalo provide milk. Also meat products are obtained from mammals. Tusk (elephant), Nails(tiger), Wool(sheep) are few examples.
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