LS3+(3-4)+-+7

7a __explaining what plants or animals might do if their environment changes__ (e.g., changing food supply or habitat due to fire, human impact, sudden weather-related changes). 7b __explaining how the balance of the ecosystem__ can be disturbed (e.g., how does overpopulation of a species affect the rest of the ecosystem).
 * Students demonstrate an understanding of equilibrium in an ecosystem by …**