Which is the best explanation of how catalysts are used in chemical reactions? A. Catalysts are need for every chemical reaction to get started

B. Each catalysts can only be used once we are given the chemical equation

C. Catalysts lower the activation energy for chemical reaction to start

D. Each catalysts see I can find with a few different substrates to get chemical reactions to started faster

What is the primary function of the nervous system?

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .

The two main stages of cell division are called