Hydropower is practical used in business, home, and schools because its a back up power during electricity outages
        
             
        
        
        
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Because amino acids can be arranged in many different combinations, it's possible for your body to make thousands of different kinds of proteins from just the same 21 amino acids. You may see books that say there are only 20 amino acids. 
 
        
             
        
        
        
Answer:
A. Carbon dioxide travels from the heart to the lungs in pulmonary arteries
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Fungus-like protists are protists that absorb their food from dead organic matter. They are grouped into 2 groups, slime molds and water molds.