Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
 
        
                    
             
        
        
        
D: Human feet come in a wide range of sizes. There isn't a lot of gray area or space for ranges of things in medel's laws, but they still work in a lot of cases. 
        
                    
             
        
        
        
Answer:
Despite the hours of sunlight a city receives, the latitude of the city plays a larger role due to the fact that with a higher latitude, the higher the solar angle allowing a city to be much warmer.
Explanation:
 
        
             
        
        
        
If the temp becomes too great, the enzymes will become denatured as their ionic bonds will change hence altering their shape 
 
        
                    
             
        
        
        
Rods work very well in darkness/ low light. Cones process colors.