diagram showing internal root structure for dicot

circle green screenshot organ design poster logo purple presentation pattern line diagram cartoon advertising internal root structure dicot black background rendering anatomical anatomy dicot endodermis epidermis structure exodermis root botanical botany cambium cell colorful cortex cross internal isolated meristem meristematic parenchyma pathology pericycle phloem physiology vascular xylem plant primary fresh green biological biology science scientific 3d rendering nature organic