What are moclues?

What is a stem cell? What is rounded raised areas of land? What is the mask of anubis? How many energy levels are in potassium? What is the formula used to calculate the number of electrons when only the atomic number is given? The plasma membranes of two adjacent cells come in contact at special sites called? What is a vacuole responsible for? How is limestone used in cement? What is the name for disturbance that harms some organisms but does not hurt the ecosystem? How many tablespoons are in 4 pints? What is 20s and 50e? What moon of Neptune is unusual because it travels from east to west as it revolves around the planet? How could global warming lead to western Europe experiencing a huge drop in temperature? What are formed by four hollow and interconnected spaces within the brain? How do you get DNA from your parent? What is isotonic classification? Is the interior surface of a cell membrane positively charged and contain less sodium than the exterior surface? Where are the stem cells that produse new neurons in adults? How have humans changed the atmosphere of the planet in 200 years? What are feature of the Unified Convergence medium?