Answer:
3a. As we know and also mention in the question that lipase is an enzyme that digested and break down the fats into fatty acid and it is also known that the action of an enzyme is as follows:
Enzyme + substrate <===> Enzyme-Substrate <====> Enzyme + Product
and here, E+S <----> ES<---->E+P 
So, E is Lipase  as the enzyme, S is fats,  and P is fatty acids
3b. The control group is in this experiment or research is the group in which activity of the lipase is tested with the help of the chemical Orlistat, present in the diet pill as the control group is used to compare the or test the results of the independent variable's response.
3c. The scientist's prediction would be that in the control group fats will not be digested by the lipase into fatty acids and will not lead to any side effects.
 
        
             
        
        
        
The best and most correct answer among the choices provided by the question is the fourth choice. The organisms survived in high and low salinities because of the t<span>emperature fluctuations can cause changes in the salinity levels of the water. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
        
             
        
        
        
#5 the answer is glucose because it is a simple sugar and plays a role in cellular respiration and photosynthesis
        
             
        
        
        
Enzymes, or digestive juices, are secreted by the pancreas into the small intestine. There, it continues breaking down food that has left the stomach. The pancreas also produces the hormone insulin and secretes it into the bloodstream, where it regulates the body's glucose or sugar level.
 
        
                    
             
        
        
        
Answer: Splitting the water 
Explanation:
Carbon dioxide has a regulating function in the splitting of water in photosynthesis.