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. 
 
        
             
        
        
        
Answer:
1. Use less cars travel way less with them if youan use a bike or walk to try stop too much CO2 being produced
2. Use less papaer or recyle trees are being cut down for them wich break down habittats and prevents filtrating CO2
3.RECYLE recylimg is something everyone can do it helps stop polution, rubish being frown in the seas oceans and animals eating them
 
        
                    
             
        
        
        
Four daughter cells that are haploid 
1         2
4         not sure
yes     no
yes     yes 
        
             
        
        
        
I want to say its a recessive trait