Answer: A. Cool 
Explanation:
The diagram shows that moving from the left to the right indicates a lower temperature and the arrow is pointing to stars to the right which means that they are cool in comparison to those on the left. 
Red stars like the one being pointed to are the cooler stars with temperatures of less than 6,000 Kelvin as opposed to blue stars which are very much hotter and go above 10,000 Kelvin. 
 
        
             
        
        
        
A bacteria cell differs from a plant or animal cell by being less complex in structure.
        
             
        
        
        
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