Q. Consider the following statements about limitations of ecological pyramids I. It never takes into account the same species belonging to two or more trophic levels II. It assumes a simple food chain, which never exists in nature III. In split of the vital role played by saprophytes/decomposers, they are not given any position in ecological pyramids 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
There are certain limitations of ecological pyramids, they are (i) It do not take into account the same species belonging to two or more trophic levels (ii) It assumes a simple food chain, whereas in nature it does not exist (iii) Saprophytes/decomposers are not given any place in ecological pyramids
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.