A piece of iron is heated and then cooled by dropping it in water. The heat lost by the piece would be higher if

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.

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.