Isotonic since in a hypertonic solution the cell would shrivel up and in a hypotonic solution it would lyse (burst).
        
             
        
        
        
<span>If a noun ends in a vowel, simply add -s.If a noun ends in a consonant, simply add -es.If a noun ends in a -z, change the z to c before adding -es.If a noun ends in ión, drop the written accent before adding -es.<span>If the plural refers to a mixed group, use the masculine.</span></span>
        
                    
             
        
        
        
they deleted my link but if u google this theres a pdf that should help
 
        
             
        
        
        
Answer:
Newton's third law of motion is For every action, there is an equal and opposite reaction.
Explanation:
 So if you throw a tennis ball and then hit it with a tennis racquet then the action would be the tennis ball and the equal and opposite reaction woul be the tennis ball bouncing off of the tennis racquet.