Question

Read the following statements regarding ecological pyramids and choose the correct answer.
$a$. Relationship between organisms at different trophic 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 trophic level.
$c$. In most ecosystems, all the pyramids of number, biomass and energy are upright.
$d$. The pyramid of biomass in sea is generally invert ed.
$e$. Pyramid of energy is always inverted and can never be upright.

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

Answer 1

Answer: (C)

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