Four general conditions necessary for natural selection to occur<span> are: A. More organisms are born than can survive. B. Organisms vary in their characteristics, even within a species. D. Differences in reproduction and survival are due to variation among organisms.</span>
        
                    
             
        
        
        
The number of primary consumers would increase because they would not get eaten.
        
                    
             
        
        
        
iron and polar molecules 
A buffeer is a solution that can resist pH of an acid or basic components.
 
        
             
        
        
        
Light striking chlorophyll causes electrons to gain energy and leave the chlorophyll molecule. As these electrons pass down an electron transport chain, they lose energy, which is used to make ATP. ... Describe what happens when the sunlight strikes chlorophyll.
        
             
        
        
        
Light is a transverse wave and this is what describes light as a wave. The correct option among all the options that are given in the question is the first option. Light is not at all similar to water and sound. It would be a big mistake to consider light as similar to the mediums water and sound. I hope the answer helps.