Read the following statements regarding (1) a, \( c \) and \( d \) are wrong
\( \mathrm{P} \) ecological pyramids and choose the correct answer.
(2) a is wrong.
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a. Relationship between in terms of organisms (3) b. and e are wrong at different trophic levels is expressed in (4) a and e are wrong 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 inverted.
e. Pyramid of energy is always inverted and can never be upright.
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