Their smooth muscle is less than arteries. Elastic fibers provide recoil which is what you need in arteries to propel the blood forward. Veins lack these which is why large amounts of blood can be stored in them without the walls providing any sort of recoil and keeping pressure low.elative to the walls of arteries, the veins' walls are thinner, because the pressure of the blood in the veins is much lower; so low in fact, that valves are required to prev â¦ ent blood in the veins flowing backwards.
The plant Agave americana, which is sometimes called American aloe, belongs to the Asparagaceae, a different family. The genus is native to tropical and southern Africa, Madagascar, Jordan, the Arabian Peninsula, and various islands in the Indian Ocean (Mauritius, Reunion, RÃ©union, comoros.). etc
The aloe plant may look like a cactus and act like a cactus, but itâs actually related to the lily and the onion. It is a succulent (i.e. its leaves retain an abundance of water), and while its exact origins are unclear, some believe it is native of Africa. It is usually found in hot, dry climates.he gel inside the leaf of the Aloe Vera plant is quite effect for treating burns (including sunburns), rashes and insect stings. The gel is also used in a variety of beauty products. Aloe Vera also makes a unique, easy-to-care-for houseplant.