Answer:
First order consumer: the first step in the food chain; they eat the producers
Explanation:
These organisms are usually herbivores. They eat the producers (plants). 
 
        
             
        
        
        
Medulla oblongata is the part of the brainstem that controls the autonomic functions such as sneezing, coughing, digestion and etc.
        
                    
             
        
        
        
Answer:
During anaphase 2, the chromosomes' centromeres break, and the spindle fibers pull the chromatids apart. The two split portions of the cells are officially known as "sister chromosomes" at this point.
Explanation:
 
        
             
        
        
        
Less genetic variation in the inheritance of traits causes a crops ability to be more prone to disease because there are less alleles immune to disease in the genetic pool