| 21. | Pectinate muscles of the atria are different from the trabeculae carneae which are found on the inner walls of both ventricles.
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| 22. | The two gills are elongated, unequal and pectinate ( i . e . in a comb-like arrangement ).
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| 23. | Transition between the different types of epithelium occurs at ileum and caecum, and at the pectinate line of the anus.
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| 24. | The anus is surrounded in its length by folds called anal valves, which converge at a line known as the pectinate line.
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| 25. | Often colourful, they have a squarish appearance and have two transverse pectinated crests on the upper edge of the male chelar carpus.
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| 26. | The leaves of a lateral shoot are further twisted at their petioles to form two pectinate rows in a horizontal plane around the shoot.
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| 27. | Morphine meconate is a major form of the alkaloid in the poppy, as is morphine pectinate, nitrate, sulphate, and some others.
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| 28. | The lower half of the anal canal, below the pectinate line, is divided into two zones separated by stratified squamous keratinized, respectively.
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| 29. | The male of this species has a wingspan of 20-24mm, head, front and palpae are yellow, antennae brownish and pectinated.
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| 30. | Antennae of the male are broadly comb-like ( pectinate ), while those of the female are almost linear and only slightly serrate.
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