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Question

Heart wood differs from sap wood in


A

presence of rays and fibres

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B

absence of vessels and parenchyma

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C

having dead and non-conducting elements

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D

being susceptible to pests and pathogens

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Solution

The correct option is C

having dead and non-conducting elements


Heart wood is non-functional wood due to tylose formation and deposition of secondary metabolites such as tanin, resin, gums and other oils. Heartwood is very dark as compared to the sapwood.


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