Part of the Arabian Desert, the Rub al-Khali, meaning âempty quarterâ in Arabic, is the largest region of continuous sand in the world, and the driest. It lies in a structural basin and stretches across an area of roughly 250,000 square miles (650,000 square kilometers.)
How do ciliates move?   Answer   Ciliates, a unicellular protozoa, use their cilia, tiny hair-like organelles, to move around. What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? Ependymal cells are cells that line the central cavities of the brain and spinal cord. They are ciliated and act as a semi-permeable lining between the cavities and normal tisâ¦sue.
Nervous tissue consists of two main types of cells: neurons and neuroglia. Nerve cells, or neurones (also written neurons). that move information around the body.Neuroglia are also known simply as glia and have various functions in support of nerve cells but.themselves.icroglial cells are sometimes known simply as microglia and are found in the Central Nervous System (CNS), that is in the tissues of the Brain and Spinal Cord. : Microglia are small glial cells. : 1  Protects CNS neurons from disease -.