I think the correct answer from the choices listed above is the second option. Carbohydrate polymers are formed by dehydration synthesis. In this process, <span>monomers combine with each other via covalent bonds to form </span>polymers<span>. Hope this answers the question.</span>
        
                    
             
        
        
        
Answer:
The climate of Antarctica was probably much warmer in the past than it is today.
Explanation:
There are little things living there now. Coal takes millions of years to form. There must have been much more living things there in the past (when it was warmer) to make coal.
 
        
             
        
        
        
The answer is Habitat. I'm 100% sure it is.
        
                    
             
        
        
        
The diaphragm ;) it controls breathing. it's what helps your lungs function.
 
        
             
        
        
        
Answer:
Negative Feedback
Explanation:
Negative feedback is a stimulus that cause the system to move in the opposite direction of what has happening.  For example if your are cold, you will shiver in order to create heat that will cause your body temperature to increase.   But if you are hot you will sweat which will cause your body temperature to decrease.