Answer:
Osteoclasts are the type of cells which are responsible for the absorption of calcium from bones. 
Explanation:
Osteoclasts is special type of cells which is released by parathyroid gland when the blood have low levels of calcium. Osteoclasts absorb calcium from the bones and add this calcium into the blood to increase the calcium level. If calcium is present in very high amount so this calcium is stored in the bones of the body and extracted when needed by the body. 
 
        
             
        
        
        
Thats true _____________________________________________________
        
             
        
        
        
I think the answer would be soot appears on a fireplace after a fire. I hope this helps you out! Good luck!
        
             
        
        
        
The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light.
        
             
        
        
        
Answer: The quantity of water in the beaker will reduce. The cell will increase size. 
Explanation: There is difference in water concentration between the cell and the beaker, therefore water will move from the beaker into the cell causing the cell to expand and the quantity of water in the beaker to decrease. There will be movement of water molecules from an area of high water concentration (beaker) to an area of low water concentration (the cell) through a selectively permeable cell membrane. The aim of this is to create an equilibrium between the water concentration in the cell and that in the beaker.