Which among the following in a food chain flows unidirectionally?
Food
Matter
Energy
Water
Energy flows unidirectionally in any ecosystem.
Flow of matter in food chain is not unidirectional because
Q49. With reference to the food chain, consider the following statements 1. A food chain represents only one part of the food or energy flow. 2. Grazing food chain and Detritus food chain both are linked. 3. A food chain always starts from a living plant. Which of the above statement(s) is/are correct?