If farming has disturbed an ecosystem and then the farmers move away the area will return to its natural state. What is this process called? A. Primary succession
B. Secondary succession
C. Ecological equilibrium

Christine, a three-year-old child, often wears her mother’s shoes and carries her bag while pretending that she is going shopping. sometimes christine copies her mother in the kitchen by stirring in empty pots. which type of developmental change is christine experiencing? a- social and emotional b- psychological c- physical d- cognitive

Exercise has no positive effects on the nervous system? true or falseu

9. withdrawal occurs when alcohol is removed from the system after the brain a. adapted to the continued presence of alcohol b. become physically saturated with alcohol c. become impervious to the effects of alcohol d. begun to treat alcohol as a poison