Wich element is found in protein but not carbohydrates or fats ?

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.