Answer:
Biology is the study of living things.
The scientific method is a method of procedure that has characterized natural science.
Explanation:
Nephron helps the urinary system to rid off metabolic waste in our system.
Without undergoing any changes itself, the enzyme makes changes to the substrate.
<h3>What is an enzyme?</h3>
An enzyme is a biological catalyst that acts by lowering the activation energy in a chemical reaction.
In a chemical reaction, an enzyme binds to a substrate to convert it to one or more products.
In conclusion, without undergoing any changes itself, the enzyme makes changes to the substrate.
Learn more about enzymes here:
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D is the correct answer since all others are highly unlikely.