Why is the r group in an amino acid important? a. it gives an amino acid its special chemical properties. b. it determines the order of a string of amino acids. c. it contains hundreds of thousands of amino acids. od. it links the carbgq atom to an amino group.

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

Anurse is in the dining room and overhears a new nurse tell a client with body dysmorphic disorder that she's much too thin and must eat more before she can go home. the client bursts into tears and runs out of the dining room. what is the best way for the nurse to address this situation?

Vessels draining the myocardium of the heart, open primarily ,into which chamber?