do u mean microbial symbiosis?
Answer:
Symbiosis is a relationship between two organisms
Types of Interactions
Positive interaction: Mutualism, Syntrophism, Proto-cooperation, Commensalism
Negative interaction: Ammensalism (antagonism), parasitism, predation
 
        
             
        
        
        
The answer to your question (I BELIEVE) is true.
        
                    
             
        
        
        
This statement is true. Developing countries indeed tend to have more people in urban areas than rural areas. For example, New York City has the massive population in the state of New York, compared to its rural areas upstate. 
        
                    
             
        
        
        
Answer:
Bioarchaeology is a discipline that studies human skeletal remains in an archaeological investigation; while forensic anthropology refers to the study of human skeletal remains in a criminal case  
Explanation:
Bioarchaeology is a discipline centered on the study of skeletal remains in order to obtain useful information about past societies/civilizations such as, for example, health conditions. On the other hand, forensic anthropology investigates human skeletal remains within a legal and/or criminal investigation. This information may result useful to identify a dead person, find the cause of death, and estimate time since death.
Similarities:
-Both disciplines have a strong biology background (especially in zoology)
-Both disciplines are focused on skeletal analysis
Differences:
 -Bioarchaeology is associated with the anthropological study of human societies, while forensic anthropology associated with legal investigations
 
        
             
        
        
        
To know where it rightfully belongs to. Variation of certain traits is caused by multiple factors of an individual of the same kind. Depending on their physical appearance, their environment and nature of survival.
Hope this might help.