Which of the following constitutes a food chain?
A. Grass, wheat and mango
B. Grass, goat and human
C. Grass, fish and goat
D. Goat, cow and elephant
Answer:B
Which of the following constitutes a food chain?
A. Grass, wheat and mango B. Grass, goat and human C. Grass, fish and goat D. Goat, cow and elephant
Explanation: The following chain constitutes a food chain (organisms in order of who eats whom); a food chain always starts with photosynthesis. Grass is at the first trophic level. Grass fixes up the solar energy and makes it available for the consumers - Goat and Humans. Goat - a consumer - cannot occupy the first trophic level.