Q. Consider the following statements about food chain I. The transfer of energy from producers to top consumers through a series of organisms is called food chain II. A food chain is always straight and proceeds in a progressive straight line III. In a food chain, there is unidirectional flow of energy from sun to producers and subsequently to series of different types of consumers Which of the statements given above are correct?
A) I and II
B) I and III
C) II and III
D) I, II and III
Explanation
A food chain is a sequence of populations or organisms of an ecosystem through which the food and its contained energy passes with each member becoming the food of later member of sequence It is a single straight pathway through which food energy travels in the ecosystem Energy flow in an ecosystem is always unidirectional or one way, i.e., Solar radiation $\rightarrow$ Producers $\rightarrow$ Herbivores $\rightarrow$ Carnivores. It can not pass in the reverse direction
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.