In the stomach i think or lungs
It falls to minus 387 degrees Fahrenheit <span />
<span>The only traits that can be acted upon by natural selection are those that are controlled by ___________________</span>
The active site is complementary to its substrate due to its specific 3D structure. The substrate fits in to one specific active site so an enzyme will only bind to one substrate. They are SPECIFIC. Lock and key theory.
