Which of the following is not true of a pyramid of productivity? (a) Only about \( 10 \% \) of t...

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Which of the following is not true of a pyramid of productivity?
(a) Only about \( 10 \% \) of the energy in one trophic level is passed into the next level.
(b) Because of the loss of energy at each trophic level, most food chains are limited to three to five steps.
(c) The pyramid of productivity of some aquatic ecosystems is inverted because of the large zooplankton primaryconsumer level
(d) Eating grain-fed beef is an inefficient means of obtaining the energy trapped by photosynthesis
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