Answer:
Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes,
 
        
             
        
        
        
The correct answer is D. Animals not adapted to cold migrate to warmer regions, because suppose that the cold temperatures kill most of the plants, so if they can die why they select that place to live? The option B is not logical because this require long time to evolve this characteristic and the option C has more logic but it still not enough, because if the temperatures are colder more animals can die. I hope this help.
 
        
             
        
        
        
The answer is b i did the quiz
        
             
        
        
        
Answer: research it? i dont know
Explanation:
 
        
             
        
        
        
Sexual reproduction offers genetic variation, as the offspring are a combination of 2 sets of genes opposed to one. This ultimately leads to evolution and the adaption to changing environments :)