Answer:
(d) In a predator or grazing food
chain predation occurs at every steps. Like herbivore are eaten up by
carnivore. If they die naturally, then the energy trapped in the body of herbivore
(or any tropic level) is transferred to decomposers .Only 10% of harbivore
productivity is utilized for raising productivity of next tropic level(primary
carnivores), while the rest 90% is eaten and used up, in process like respiration,
maintenance of body heat and other activities.
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