Answer: Selectivity of mineral nutrients absorbed by roots
Explanation:
The Casparian strip in the plants are waxy coating found in the roots of the plant which helps in absorbing excess of water into the plants.
These strips thickens the walls, thus preventing the excess of soil solution from being pulled by the roots into the central part of the plant.
It helps in selecting the type and amount of nutrient into the plant but the plant having no Casparian strip will reduce the selectivity of the nutrients.
