Yes because he is only observing the height of the plants and he only changes one variable
In many cases, the activity of an enzyme is regulated by Negative feedback where the end product acts as a non competitive inhibitor.
In feedback inhibition the end product of a metabolic pathway acts on the key enzyme regulating entry to that pathway, keeping more of the end product from being produced. The feedback inhibition acts at the first committed step of the pathway, meaning the first step that's effectively irreversible. The pathway steps regulated by feedback inhibition are often catalyzed by allosteric enzymes.
D. All of the above are correct
Cells defend themselves from viruses, bacteria with armor of protein errors
Answer:
multicellular; single celled organisms are often too tiny to be seen without a microscope