They are exposed to diseases, such as cholera and typhoid fever, and other water-borne illnesses. Two million people, mostly children, die each year from diarrheal diseases alone.
        
                    
             
        
        
        
Answer:
This represents a <u>frameshift</u> mutation.
Explanation:
The difference between the two sequences is that there is an extra base (C) in the second sequence. A frameshift mutation occurs when there is an insertion or deletion of a nitrogenous base into a DNA sequence.
 
        
             
        
        
        
Answer:
Plasma membrane acts as a selectively permeable barrier between cell components and external environment. If plasma membrane breaks down, it would result in the release of cellular components including cell organelles and cytoplasm in the external environment ultimately leading to the cell death.
 
        
             
        
        
        
1). A good example for mutualism is People and plants.  We provide plants Carbon dioxide.  Plants provide us Oxygen 
2).Biome is where you have your tundras, Rain forests, Deserts, etc.  then you have to give 3 characteristics like temperature, precipitation levels, soil type, etc.
I will have to get to question 3 later since im in class but ill give you the answer to that one.  its easy