Amylase is an enzyme that helps break down complex carbohydrates into simple carbohydrates. This enzyme is present in the saliva in the mouth. When salivary amylase is in
the stomach, it stops functioning.
Which of the following best explains the change that occurs when salivary amylase enters the
stomach?

A. Amylase is used up in digestion of proteins in the stomach.
B. The alkaline pH of the stomach inhibits the amylase,
C. Amylase is denatured in the acidic pH in the stomach.
D. All complex carbohydrates are already broken down when swallowed.

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return