Answer:
1. Higher
2.Contract 
Explanation:
If an animal cell is kept in a hypertonic solution, water will move from higher water potential to lower that is from the intracellular fluid into the solution resulting in the contraction of the cell 
 
        
             
        
        
        
<span>B. the complementarity of DNA and RNA
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Answer:
The circulatory system to provide this oxygen and to remove the waste products of metabolism.The exchange of gases between the blood and tissue cells is internal respiration.
Explanation:
the circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles
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