Read the following statements regarding ecological pyramids and choose the correct answer .
(a) Relationship between organisns at different tropic levels is expressed in terms of number , biomass and energy.
(b) Any calculations of energy content, biomass or number has to include one group of organisms at that tropic level
(c) In most ecosystems, all the pyramids of numbers , biomass , and energy are upright.
(d) The pyramids of biomass in sea is generally inverted .
(e) Pyramid of energy is always inverted and can never be upright.

Options

A. a, c and d are wrong
B. a is wrong
C. b and e are wrong
D. a and e are wrong

Answer

C

Explanation

Any calculation of energy content, biomass ornumbers has to include all the organism at that trophic level.
Pyramid of energy is always upright , can never be inverted.