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Which one of the following statements is correct regarding cockroach ?A. Head is oval is shapeB. There are 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)C. Heart is differentiated into funnel shaped chambers with setae on either sideD. Each eye consists of about 1000 hexagonal ommatidia |
Answer» Correct Answer - B In cockroach, head is triangular in shape. Heart is differentiated into funnel shaped chambers with ostia on either side. Each eye consists of about 2000 hexagonal ommatidia. |
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