The chemical balance in your stomach must stay within acceptable levels. if it doesn’t, you could develop indigestion. what chemical makes the interaction between the molecules in your stomach occur so that you (hopefully) do not develop indigestion? question 4 options: water starch (a carbohydrate) stomach acid zinc (an enzyme)

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Environmental impacts on evolution : mastery test

Asmall population of chimpanzees lives in a habitat thant undergoes no change for a long period of time. how will genetic drift affect this population