Give one basic functional difference between phellogen and phelloderm.
Give one basic functional difference between phellogen and phelloderm.
$\Rightarrow$ vCork cambium is an active tissue while periderm is a permanent tissue. Phellogen is produced from cells of cortex. Sometimes formed from cells of pericycle. These cells are actively divided and produce phellem cells outside and cells of periderm inside. Hence periderm is produced from cork cambium.
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In a dicot stem, the interfascicular cambium strip arises
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Cork cambium is otherwise called
$I.$ Annual rigs are formed as a result of seasonal environmental conditions
$II.$ Tracheids/vessels elements are larger during periods when water is abundant
$III.$ Tracheids/vessels elements have thicker wall during periods of water deprivation
$IV.$ Wood formed in the previous years is darker than newer wood
Select the combination of correct statements from the options given below
$I.$ Annual rigs are formed as a result of seasonal environmental conditions
$II.$ Tracheids/vessels elements are larger during periods when water is abundant
$III.$ Tracheids/vessels elements have thicker wall during periods of water deprivation
$IV.$ Wood formed in the previous years is darker than newer wood
Select the combination of correct statements from the options given below
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Give differences: Heartwood and Sapwood
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