The main function of white blood cells is to help protect the human body from infection as well as other foreign materials. White blood cells are also known as leukocytes, and they develop in bone marrow from stem cells. There are five different types of white blood cells<span>, including neutrophils, lymphocytes, monocytes, eosinophils and basophils.</span>
        
             
        
        
        
Answer:
a scholarly work falls within the journal's scope, the research topic has been clearly formulated, a suitable approach has been taken to address the scientific issues involved. 
Explanation:
 
        
             
        
        
        
Answer:
in anaphase.
Explanation:
during which each chromosome's sister chromatids separate and move to opposite poles of the cell.
 
        
             
        
        
        
Idk try to help me too lol