Question
The diagram shows part of a food chain. The left box represents producers and the right box primary consumers. Arrows show energy flows.
Which forms of energy are represented by X and Y?
▶️Answer/Explanation
Ans:D
Question
The diagram shows interactions between food chains in an ecosystem in the African savannah.
Which arrows indicate the flow of chemical energy?
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
▶️Answer/Explanation
Ans:C
Question
Which processes occur in an ecosystem?
I. Biomass increases in each successive trophic level.
II. Inorganic nutrients are recycled.
III. Chemical energy is stored in carbon compounds.
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
▶️Answer/Explanation
Ans:C