The choroid is the vascular layer between the sclera and retina. These blood vessels supply the eye with oxygen and nutrients.
Vascular is a system of vessels for conveying fluid e.g. blood in mammals, sap in trees.Presumably non-vascular is the opposite, something that does not have a system of fluid carrying vessels. i say that vascular plants have leaves , roots and stems and can grow tall nonvascular brigs the water and nutrients directly to the top
A sunflower is vascular plant. It uses vessels to transport nutrients and water to the rest of the plant.
Vascular organisms (most animals) have blood vessels, lymphatic system vessels, etc., that carry fluids, while nonvascular organisms (such as algae, lichens, and mosses) do not have vascular tissues. Vascular tissues in plants, the xylem and phloem, run from the roots to the leaves carrying water and nutrients.
Vascular tissue in plants can best be compared to blood vessels in people and animals.
vascular plants are plants that have vessels
Most angiospermic vascular plants have true vessels
The function of blood capillaries is to provide cellular, or tissue, respiration, provide nutrients and remove waste products. They are the tiny blood vessels that are between the venules and arterioles and the interstitial space between cells.
The function of blood capillaries is to provide cellular, or tissue, respiration, provide nutrients and remove waste products. They are the tiny blood vessels that are between the venules and arterioles and the interstitial space between cells.
via the hepatatic portal system (all absorbed nutrients except triglicerides)or via the lymphatic vessels to the blood vascular system and then to the liver (triglicerides)
A rose is very much a vascular plant because it has structures such as roots, stems, leaves, and vessels to carry water and nutrients which non-vascular plants do not have. Non-vascular plants have no means of storing nutrients like flowers do and they would die quickly if they aren't in a moist environment. Vascular plants include trees, shrubs, flowers, and grasses. Non-vascular plants include mosses and algae.
Vascular diseases are usually caused by conditions that clog or weaken blood vessels, or damage valves that control the flow of blood in and out of the veins, thus robbing them of vital blood nutrients and oxygen.
The dark brown membrane of the eye is the choroid, it contains many blood vessels and supplies the eye with nutrients.