It is also called free fall acceleration 
Hope this helps
Plz mark as brainliest
        
                    
             
        
        
        
Answer:
D. The patient must stop all other drugs 72 hours before starting prednisone.
Explanation:
 
        
             
        
        
        
stop spamming please u will get help be relaxed and wait
 
        
             
        
        
        
<span>a. Fish have a single central heart; earthworms have several hearts. 
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Multi cellular organisms are made up of billions of cells each specialized to a unique role and these cells are organized into structural and functional units such as tissues and organs.
For each cell and organ to function optimally, it requires oxygen and nutrients and needs carbon dioxide and  metabolic waste taken away  in a  continuous, never ending  process.
<span>A mechanism  is needed to accomplish the important function of transporting the relevant materials to and from the cell. The circulatory system fits this  bill splendidly. It is a specialized organ system which allows blood  and lymph to flow through the entire body carrying nutrients such as glucose, amino acids and electrolytes as well as oxygen to each cell, at the same time carting away carbon dioxide and all sorts of metabolic waste over to excretory organs  to be expelled from the body. 
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I would say 
a. biological pest control
biological pest control is when  other plants or animals are used to control pests. There are no chemicals used only the natural roles of the environment.
Hope this helped!