Answer:
The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones. or Complete digestion takes place in the small intestine as it finally absorbs the nutrients. The end products of digestion are amino acids, fatty acids, glycerol, and glucose.
Explanation:
If you're talking about the end product go with the latter
 
        
             
        
        
        
Answer:
11) A. The optimum pH of an enzyme is 6.6
12) C. A control group
 
        
             
        
        
        
Answer:
Answer 
Explanation:
All living things are composed of cells.
Cells are the basic units of structure and function for living things.
All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.
 
        
             
        
        
        
The therapy can find the damaged cancer cells and prevent it from reproducing, or even taking it off the gene so that none person from the next generations will suffer the same.
        
                    
             
        
        
        
Answer:
Radiation, chemical, and infectious agents are  mutagens or environmental factors that can cause a mutation
Explanation:
Mutagens are agents that can interfere with DNA and cause a mutation. They can cause chemical changes, structural changes or breakages that end up altering the sequence of the DNA. This results in mutations which can cause diseases such as cancer.