Assertion (A): Avicennia roots are erect, peg like structures with numerous pores through which air circulates. Reason (R): These roots are seen above the ground for the purpose of gaseous exchange called as breathing roots, or pneumatophores.
In a plant organ covered by periderm or the cork cambium, the stomata are absent. Gaseous exchange occurs through
In a plant organ covered by periderm, the stomata are absent. Gaseous exchange occurs through the