Answer: Food, Water, Shelter and Space
Explanation: In the natural world, limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations.
 
        
             
        
        
        
Answer:
the crossbreeding and genetic engineering of crops, such as wheat, rice, and other grains
 
        
                    
             
        
        
        
Because the heads are polar/hydrophilic so they will be attracted to the water which is also polar whereas the tails are non-polar/hydrophobic so they will avoid the water at all cost.
        
             
        
        
        
Answer:
160 
Explanation:
 cause the chromosome will double