Which of the following is not true about vitamins? A. Vitamins assist in forming bone and tissue.
B. Vitamins are only found in plants.
C. Vitamins help your cells function properly.
D. Vitamins help the body use proteins, carbohydrates, and fats.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present