Substance that increases the rate of a reaction without being used up? A. Inhibitor
B. Catalyst
C. Rate Law
D. Activation Energy

B Catalyst

Explanation:

catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.That is why B is the right answer.

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.

since electrons are negative the answer is neagtaive