| 41. | When the eggs hatch, the larvae eat their way through the cambium, boring into the heartwood.
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| 42. | Indigenous peoples used to chew gum produced from the tree as well as eat the cambium and sap.
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| 43. | This stops the cambium layers from drying out and also prevents the ingress of water into the cleft.
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| 44. | The vascular cambium cells divide to produce secondary xylem to the inside and secondary phloem to the outside.
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| 45. | The seasonal variation in growth from the vascular cambium is what creates yearly tree rings in temperate climates.
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| 46. | In bark, phlobaphenes accumulate in the phellem layer of cork cambium, part of the suberin mixture.
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| 47. | In an adult, the phloem originates, and grows outwards from, meristematic cells in the vascular cambium.
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| 48. | In plants undergoing secondary growth, the pericycle contributes to the vascular cambium often diverging into a cork cambium.
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| 49. | In plants undergoing secondary growth, the pericycle contributes to the vascular cambium often diverging into a cork cambium.
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| 50. | They live below the soil surface, and feed on roots and cambium at the base of the trunk.
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