These two organisms may have evolved by coevolution. The last option in the given question is the correct option. The Latin-American humming birds had to evolve as per their surroundings, otherwise they would have become extinct in that region. For that sole purpose they had to have the long and curved bills. The flowers needed the humming birds for their pollination. To attach with the legs of the humming birds in the region, the flowers had to become sharply curved. The humming birds had to come in contact with the flower while sucking the nectar. this helped the plants in their pollination process. so both became mutually beneficial to each other.
        
                    
             
        
        
        
b.) recycling glass, plastics, and metals <span>would result in the greatest reduction of waste
Hope this helps!</span>
        
             
        
        
        
Answer:
The populations are isolated and thus do not interbreed.
Explanation:
 
        
                    
             
        
        
        
Answer:
Molecules of gas starts movement when they get energy from the sun in the form of heat. 
Explanation: 
Molecules of gas absorbed heat energy coming from sun. This heat energy is converted into kinetic energy due to which gas molecule moves faster. Volume of gas molecules also increases due to expansion of molecules by the absorption of heat energy. So more space is occupied by gas molecule as compared to liquid molecules. 
 
        
             
        
        
        
The human race may survive through survival of the fittest. basically whoever has the biggest stick wins! The body also could adapt to the lack of water so you could preserve your bodily resources and manage them better. Or you could just change the environment to benefit yourself and mankind!