Answer:
Gravity.
Explanation:
Without air, living organisms would suffocate and die.
Without water, living organisms would dehydrate and die.
Without energy, living organisms would die instantly.
Without space, living organisms would be squished together and die.
The only logical answer left is gravity.
 
        
                    
             
        
        
        
Answer:
B. 
Explanation: Hope this helps! ^^
 
        
             
        
        
        
<span>Ptyalin hydrolysis does not continue in the stomach because it is destroyed by the stomach once it enter the stomach. </span>
Ptyalin is an amylase enzyme commonly found in the saliva of
humans and animals. This enzyme is secreted in the mouth ( buccal cavity) and catalyze
the hydrolysis of starch into maltose and dextrin. Immediately the starch
leaves the mouth and enter the stomach, stomach acids destroy the ptyalin.
 
        
             
        
        
        
Answer: Rhinoceros
Explanation:
Odd-toed ungulates include the horse, the tapir, and the rhinoceros.