5. how do enzymes found in your saliva aid in digestion?

a. they provide energy to initiate the chemical reactions involved in digestion
b. they decrease the rate of the chemical reactions involved in digestion
c. they increase the rate of the chemical reactions involved in digestion
d. they aid in the process of moving food more quickly to the stomach
e. they are consumed as part of the chemical reactions involved with digestion

the answer is C) They increase the rate of the chemical reactions involved in digestion

Explanation:

The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.

Eutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants. The excess algae and plant matter eventually decompose, producing large amounts of carbon dioxide. This lowers the pH of seawater, a process known as ocean acidification.