Enzymes are considered catalysts, they help reactants and can be used over and over
I can’t give you a specific answer because I’m not sure what your lab is. However, an independent variable is the variable that is changed, the dependent variable is the variable that is affected by the change, and the constant variables are those which remain the same throughout the entire experiment.
Patterns. ...
Cause and effect: Mechanism and explanation. ...
Scale, proportion, and quantity. ...
Systems and system models. ...
Energy and matter: Flows, cycles, and conservation. ...
Structure and function. ...
Stability and change.
I wanna say the answer is cause and effect
Heart is made up of Cardiac muscle