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Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by |
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a) |
Absence of secondary xylem |
b) |
Absence of secondary phloem |
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c) |
Presence of cortex |
d) |
Position of protoxylem |
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Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by |
|||
|
a) |
Absence of secondary xylem |
b) |
Absence of secondary phloem |
|
c) |
Presence of cortex |
d) |
Position of protoxylem |
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(d) Dendrochronology is the branch of Botany that deals with the determination of age of a tree by counting and analyzing the annual growth rings of the tree. |