It could mean that you have an infection or are starting to get sick
        
             
        
        
        
Answer:
random mating
<h3>matution:a change in the chromosomes or genes of a cell</h3>
Explanation:
crossing over(or recombination) between chromotids or homologous chromosomes during meiosis
 
        
             
        
        
        
Answer:
The surface of the rough endoplasmic reticulum (ER) is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.
Explanation:
Hence their terms, rough and smooth endoplasmic reticulum, the smooth is like a fine tube whereas the rough consists of ribosomes on its surface. Both the smooth and rough endoplasmic reticulum work together, delegate tasks and are the site for production and storage of proteins.
Smooth ER is responsible for storage and lipids production, while the rough ER is responsible for production of proteins and some hormones. 
have a darling weekend ^w^
 
        
             
        
        
        
D. think of it like a current!
electron -> electron-> electron->
 
        
                    
             
        
        
        
Chemical energy through the process of photosynthesis.