Answer:
grafting
Explanation:
The grafting is a horticultural technique that enables us to place a stem of a desired plant into another, more adequate already developed root system. This is done by cutting a branch from the already established plant, on the place of the precisely made cut we joint the desired stem, and then joint them together, be it with wax, mud, or a sellotape. The stem that has been placed on the established plant will be able to get the nutrients from it in this manner and become part of it, but it will produce different fruits from the established plant, it will produce its own fruits. This technique of course works only on plants that are more closely related and belong to the same family.
 
        
             
        
        
        
Answer:
It is the brain of the cell and it tells the other cell parts what to do.
It holds the cell's DNA
 
        
             
        
        
        
C. the answer is c. i just took this test on keystone (i think this is keystone question. right?0
        
             
        
        
        
The genotypes of the parents are Aa (heterozygous) and aa (recessive homozygous).  
 For example:  
 If the purple flower is dominant phenotype, then A is a dominant allele for it and Aa is a genotype which will give the purple colour. 
In this case, white flower is recessive phenotype with aa genotype. 
If we cross Aa x aa 
<span>The offspring is going to be Aa Aa aa aa (half purple and half white)</span>
        
             
        
        
        
The effects could be, the top consumers may run out of food, which would make it harder for them to catch food