Answer:
B) Smooth ER
Explanation:
mitochondria is the powerhouse of the cell
golgi apparatus is the transportation of the cell
centrioles help with cell division
 
        
             
        
        
        
Answer:
a. Mammalia
Explanation:
Mammalia are the class species that have distinct systems and separate ducts for different activities like reproduction, excretory, and defecatory and moreover they have nipples to feed their young ones. 
So, the above species which has a single duct for reproductive, excretory, and defecatory material as well as a lack of true nipples does not belong to Mammalia
 
        
             
        
        
        
Answer:
A
Explanation:
it will break down to co2 which is absorbed in the body to form glucose to release energy
 
        
             
        
        
        
Answer:
When heated too much, enzymes (since they are proteins dependent on their shape) become denatured. When the temperature drops, the enzyme regains its shape. ... Changes in pH will also denature the enzyme by changing the shape of the enzyme. Enzymes are also adapted to operate at a specific pH or pH range.
 
        
                    
             
        
        
        
Answer:It helps with the global warming problem
Explanation:Carbon traps heat so if we release to much of it the earth is gonna get hotter melting polar ice caps causing the sea level to rise if we don't stop that water is gonna cover a lot more of the earth