Biology is the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution. 
This is basically the definition of biology, so you may need to add a little more detail. This is a great way to get it started though!!! 
Hope this helps!!
        
             
        
        
        
Answer:
It would be D. Mitotic spindles form 
 
        
             
        
        
        
Answer:
It is active transport
Explanation:
because the ions are moving against the concentration gradient
 
        
             
        
        
        
DNA<span> and </span>RNA<span> are nucleic acids found in the cells of living organisms. ... The </span>synthesis<span> of </span>proteins<span> starts with transcribing the instructions in </span>DNA<span> into mRNA. The mRNA is then carried out of the cell's nucleus into the cytoplasm, specifically into structures called ribosomes.</span>