What is colostrum? a. a clot in the bloodstream b. a major protein in breast milk c. a hormone that promotes milk production d. a milk-like substance secreted right after delivery?

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

Explain how scientists use geologic time to determine the age of landforms.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.