Answer:
A+B C. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively.
The answer is C- facilitated diffusion.it is a type of passive transport. In facilitated diffusion particles move from higher concentration to lower concentration. So particles move along their concentration gradients , so energy is not required.
The part of the fibula that is found near the Knee joint is the head
