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
Aloe-a big family. Although, the scientific name of aloe Vera is Aloe Barbadensis Miller, but Aloe itself is a big family with many scientific names. In botany are listed over 250 species of aloe.Of these, the most important are: Aloe Africana:- Before Aloe Vera, this plant was the most wanted species of aloe. Blessing from Centuries to Date. The scientific name of Aloe Vera is Aloe Barbadensis Miller. Aloe Vera is a subtropical plant of the Asphodeloideae family. Aloe Barbadensis Miller is one of over 250 known species of aloe.