The undifferentiated mass of cells formed during tissue culture which can be further grown into new plants is called callus.
Cambium is alayer of actively dividing cells found between the xylem and phloem tissues that is
responsible for the secondary growth of stems and roots.
Annual rings are the rings arranged in concentric forms in the bark of the tree, their numebr represmts the age of the tree whereas their thickness depends upon the season that the tree has lived through.
Maize aka Zea mays
All dicot and monocot plants are the examples of plants with conjoint and collateral vascular bundle.
Typical eg: helianthus , zea mays , pisum sativum. Etc
Cortex, tissue of unspecialized cells, is located between the epidermis and the vascular tissue in the plants . It helps in the transportation of water and minerals to the center or core of the root through the process of diffusion.
Cuticle is the outermost waxy/hydrophobic layer made up of cutin; it's main function is to prevent the loss of water in form of water vapor through the epidermis. It also helps in reduction of transpiration in the xerophytic plants to prevent water loss and provides protection against desiccation.
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