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Which one of the following phyla is correctly matched with its two general characteristics ?

(1) Mollusca Normally oviparous and development through a trochophore or veligerlarva
(2) Arthropoda Body divided into head, thorax and abdomen and respiration by tracheae
(3) Chordata Notochord at some stage and separate **** and urinary openings to the outside
(4)Echinodermata Pentamerous radial symmetry and mostly internal fertilization

 

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