The human body is made up of several organ systems that work together as one unit. Which organ function to breaks down food into nutrients?

A. kidney

B. heart

C. esophagus

D. stomach

Which principle described by psychologist martin seligman fosters an overall positive attitude by using thinking and behavior techniques to resist negativity?

Which action occurs in the third stage of cell division a. the nuclear material of a cell is copied exactly b. the nuclear membrane disappears c. the cell forms two nuclei or d. the nuclear material separates, with half moving to wither side of the cell

What are the five stages of physical activity behavior