Secondary structures are dependent upon hydrogen bonding. The two main types of secondary structure are the a-helix and the B-sheet. The a-helix is a right-handed coiled strand.
        
             
        
        
        
Alleles. Alleles are the "same" genes, but provide a variation of the intended function. 
        
                    
             
        
        
        
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
 
        
             
        
        
        
Answer:
During Diffusion, molecules move from areas of high concentrations to areas of low concentration.
Diffusion does not require energy 
 
        
             
        
        
        
95% sure it is answer B) Detect the electrical discharges of prey in the sand using small pits on it's bill, crush the food with grinding pads on the top and bottom of it's bill (they don't have actual teeth), and webbed feet.
I did some quick research and it had all of those things. 
Hope this helps.