imagination - the formation of a mental image of something that is not perceived as real and is not present to the senses; popular imagination created a world of demons; imagination reveals what the world could be. imaginativeness, vision. creative thinking, creativeness, creativity - the ability to create.
Definition of the Cortex. Let's explore the cortex layer in more detail. The cortex is defined as root and stem tissue found between the epidermis and vascular tissue of a plant. When you eat potatoes or carrots you are actually eating the root of a plant's cortex.
Root System. Beneath the epidermis of the plant's root is a layer called the cortex, which is made up of layers of cells called vascular rays. The vascular rays carry water through the root and into the stele, the center of the root.Inside the stele are veins that serve as the circulatory system of the plant.oot System. Beneath the epidermis of the plant's root is a layer called the cortex, which is made up of layers of cells called vascular rays. The vascular rays carry water through the root and into the stele, the center of the root.