Answer:
The missing word is Repair.
Explanation:
It is known in medical parlance that if handled correctly, DNA repair can lead to correction of the diseased gene.
The known/major methods for gene repair are:
- repair of base excision
- repair of nucleotide by excision and 
- mismatch repair.
Nutritionists some nutritions also claim that certain foods such as strawberries, celery, broccoli, and even lemon can help repair DNA.
Cheers!
 
        
             
        
        
        
Mountain lions with lots of variation because variation is important for species’ survival. If there is an environmental change that negatively affects organisms with a certain trait, variation can insure that the entire species will not be wiped out because some organisms within that species might not have that trait and can survive.
        
             
        
        
        
Plants need oxygen to survive , no oxygen mean the plant will diePlants do need oxygen to survive. They respire (take in oxygen, give off carbon dioxide) the same way that animals do. The difference is that during the day, plants also perform photosynthesis, in which they take in carbon dioxide and give off oxygen.Plants require oxygen for respiration to carry out their functions of water and nutrient uptake. In soil adequate oxygen is usually available, but plant roots growing in water will quickly exhaust the supply of dissolved oxygen and can be damaged or killed unless additional air is provided. A common method of supplying oxygen is to bubble air through the solution. It is not usually necessary to provide supplementary oxygen in aeroponic or continuous flow systems.Oxygen is vital ingredient in plant survival
        
             
        
        
        
Hydrophobic<span> is da answer.</span>
        
             
        
        
        
Answer:
Night or Day 
Explanation:
when the earth is tilted towards the sun it is day and when it's titled away it is night