Heeelp! what is a peptide bond? a. the bond that connects two proteins b. the bond inside an amino acid c. the bond that connects two amino acids d. the bond that connects two nucleic acids

Which of the following systems in absorbing oxygen and releases carbon dioxide

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.

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)