Content Limits :
Items referring to organisms in food webs are limited to the impact of changes in matter or energy in trophic levels.
Items addressing food webs will require application of the knowledge of roles of organisms in a food web to describe energy pathways rather than the identification of producers, consumers (primary, secondary, tertiary), and decomposers.
Items will not require knowledge of specific organisms or their feeding habits.
Items assessing biogeochemical cycles are limited to the water cycle and the carbon cycle.
Items referring to the biogeochemical cycles may address but will not assess photosynthesis and cellular respiration in isolation.