Activation energy A. is the amount of energy required during activity such as flagellar motion B. requires the addition of nutrients in the presence of water C. is lowered by the action of organic catalysts D. results from the movement of molecules

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.