Which of the following is not a character of Pheretima posthuma? (1)The skin of earthworm is brown due to the presence of porphyrin (2)The first segment is called as prostomium (3)Blood glands are present in 4th,5h and 6 segments,they produce blood cells and haemoglobin which is dissolved in plasma (4)There are four pairs of spermathecal pores in Pheretima which are located in intersegmental grooves between segments 5/6,6/7,7/8,8/9
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