Which term describes an enzyme? substrate reactant catalyst product

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems

Anurse administers methenamine cautiously to a client with a history of which condition?

Put the processes of the water cycle in the correct order starting at the point where the water is in a lake