An enzyme known as amylase is found in the saliva of humans. This enzyme helps to begin the process of digesting starch molecule
s in the foods we eat. Which of these BEST describes how enzymes like amylase help in the process of digestion? (AKS 1a1) Question 2 options: Amylase contains the DNA molecules necessary to assemble the proteins needed for digestion. Amylase is a catalyst that speeds up the chemical process of breaking down food molecules. Amylase breaks down the food molecules directly by forming powerful acids. Amylase acts as a buffer to keep the pH of foods at a consistent level.
The mutations occur at a rate of 0.56 base changes every 1 billion years. If this rate stays consistent, the mutation rate can be used to determine when different lineages of a particular species split
