| 31. | The three lips represent successive lowering of the soil surface.
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| 32. | This growth will break down the mulch that is left on the soil surface.
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| 33. | Pupation occurs in a silken cocoon below ( usually ) or at the soil surface.
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| 34. | This plant has its overwintering buds situated just below the soil surface ( scapose ).
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| 35. | The infected larvae tend to remain vertical to the soil surface with their heads up.
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| 36. | They lie on the soil surface waiting for prey.
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| 37. | Be careful in working around ferns _ their rhizomes are just beneath the soil surface.
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| 38. | During the dry season it may shrink so much it disappears beneath the soil surface.
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| 39. | This plant has its overwintering buds situated just below the soil surface ( hemicryptophyte ).
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| 40. | It grows by long stolons under the soil surface.
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