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Identify the correct statements:
$A$. Lenticels are the lens-shaped openings permitting the exchange of gases.
$B$. Bark formed early in the season is called hard bark.
$C$. Bark is a technical term that refers to all tissues exterior to vascular cambium.
$D$. Bark refers to periderm and secondary phloem.
$E$. Phellogen is single-layered in thickness.
Choose the correct answer from the options given below:
$B$ and $C$ only
$B,C$ and $E$ only
$A$ and $D$ only
$A,B$ and $D$ only
Solution
Lenticels are lens shaped opening permitting exchange of gases between the outer atmosphere and internal tissue of the stem.
Bark that is formed early in the season is called early or soft bark. Towards the end of the season late or hard bark is formed.
Bark is non-technical term that refer to all tissues exterior to vascular cambium.
Bark refers to a number of tissue types, viz periderm and secondary phloem.
Phellogen is couple of layers thick
Therefore, only statement $A$ and $D$ are correct.
