Answer: no friction, metal
Explanation: yes
Enzymes are also known as Biological catalysts. An enzyme working at its maximum possible rate, where the substrate concentration is in excess is <span>V max.
</span><span>The reaction is slow because the molecules are moving slowly and they will not often collide with the active site of an enzyme, so the binding of an enzyme and substrate is rare.</span>
Macronutrients are, in the most basic terms, the components of food that ... gram, and that's not including the additional calories from sugary additives, etc. ... absorbed by the body, making it possible for you to still be deficient.
you could find the answers if u look up the name of it like
4.3 powering the cell: cellu.... answer
The one with the the limestone thingy is faster because the friction is loss
my educational guess
