Answer is B 
 Explanation : Plant cells are enclosed by a rigid cell wall. When the plant cell is placed in a hypotonic solution , it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting. ... This liquid or hydrostatic pressure called the turgor pressure prevents further net intake of water .
 
        
             
        
        
        
If the tilt was less, It would probaly mean that the suns heat would sink lower then the equator, assuming the earth levels out more upright. 
Google it to be sure, Hope i helped
        
                    
             
        
        
        
The answer is D. 
hope it helps:)
        
                    
             
        
        
        
A cell can only respond to signals from other cells, not from the physical environment. receptor activation. The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on: the presence of the appropriate receptors on the cells of the target tissue or organ.