Answer:
Biomagnification is the collection or accumulation of a toxic or non-toxic substance or chemical by an organism from exposure to water and food that leads to a concentration that is far more than the expected condition of exposure from equilibrium. It leads to harmful effects on the health and physiology of individual organisms.
Consuming a huge number of marine animals or fish could cause the biomagnification of harmful substances if accumulated such as mercury as it is the most significant source of ingestion-related mercury exposure in humans.
 
        
             
        
        
        
Answer:
Limited in how much people could get.
Explanation:
 
        
                    
             
        
        
        
Answer:
B. hold clear expectations about the way their grandchildren should behave.
Explanation:
The role of grandparents in the studied to have a significant impact on the development of their grandchildren and vice-versa. While talking about companion grandparents they presented their relationship as connected, loving, and playful.  For most people, they fit the ideal grandparenting profile but they not get involved with parenting and disciplining of their grandchildren.
 
        
             
        
        
        
Answer:
Conceptual physical education or personal fitness classes.
Explanation:
Conceptual physical education or personal fitness classes are most likely to positively influence high school students' attitudes toward physical activity, perceived competence for physical activity, and encourage them to adopt a physically active way of life. It refers to an approach to teaching basic physical education that uses a textbook and classroom instruction sessions in addition to more traditional activity sessions and are designed to help students effectively adopt health-enhancing physical activity for a lifetime.