I think it is A but not 100% sure. Think of an enzyme like a key unlock the lock is the protein. And to activate getting inside your car or house you have to fit the key into the lock.
        
             
        
        
        
Answer:
(x - 1)(x - 2)(x + 3)
Explanation:
f(x)=x3-7x+6 Since (a + b + c + d = 0), then f(1) = 0 --> one factor if (x - 1).
After division -->
f(x)=(x-1)(x2f2+x-6). The trinomial in parentheses can be factored.
Find 2 numbers knowing sum (1) and product (-6). They are -2 and 3.
Therefor, f(x)=(x-1)(x-2)(x+3)
 
        
             
        
        
        
The correct answer is B. After filtration, the lymph from lymph node travels to the subclavian veins, through efferent lymph vessels. The whole transport process is affected by smooth muscle contraction, changes in pressure and opening/closing of valves. 
        
                    
             
        
        
        
Cells depend on the body environment to live and function. Homeostasis<span> keeps the body environment under control which keeps the conditions right for the cells to live and function. Not having the right body conditions can result in certain processes and proteins won't function properly.</span>
        
                    
             
        
        
        
The right answer is decreased nonshivering thermogenesis.
The increase in metabolism allows an increase in the production of heat. Newborns use their brown fat as a source of heat, it is a non shivering thermogenesis.
The second mechanism for increasing heat in humans is increased muscle tone and shivering, but in the newborn there is no chill.