Those small sections are called Genes
 
        
                    
             
        
        
        
Answer:
Describing a trait as dominant does not mean it is the most common; it means that it is expressed over the recessive trait. For example, tongue rolling is a dominant trait, controlled by the dominant version of a particular gene (R). Individuals with one or two copies of R will exhibit tongue rolling.
 
        
             
        
        
        
The only way for gases to diffuse in and out of the leaf is through small openings on the bottom of the leaf, the stomata.
        
             
        
        
        
Planting the same crop in the same place each year zaps nutrients from the earth and leaves soil weak and unable to support healthy plant growth. Because soil structure and quality is so poor, farmers are forced to use chemical fertilizers to encourage plant growth and fruit production.