The unique - tertiary structure of the enzyme is what makes it unique - this in combination with the receptors at the active site confer specificity.
the term used to describe how well an organism functions in its environment is variation
Answer:
hmm ffom what i know, mitsuki is artificialy made by orochimaru hence why we can make multiple mitsuki. and as for kawaki, hes a normal boy who was experimented on by jigen as a possible vessel if im not mistaken