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6.Anatomy of Flowering Plants
normal
Leaves fall from the branches on account of
A
Completing their duration of life
B
Formation of abscission layer external to cork
C
Shortening of day time
D
Fall in atmospheric temperature
Solution
(b) Abscission is a special layer of parenchymatous cells appear at the base.
A protective layer of suberised thick walled cork cells is formed below the abscission layer to prevent infection.
Standard 11
Biology
