Vascular bundles are derived from $(originate\ from)$
Dermatogen
Periderm
Endogenous tissue the procambial strand or plerome
Cortex
Apical meristem and intercalary meristem are called primary meristem because?
$I.$ Found only in sporophytic phase of life cycle
$II.$ May contain enzymes that are biologically active
$III.$ Often contain strengthening polymers
Select the correct option for cell wall
Which would do maximum harm to a tree ? The loss of
While eating peach or pear it is usually seen that some stone like structures get entangled in the teeth, what are these stone like structures called ?