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Which of the following statements regarding food chain is false?A. In an aquatic ecosystem, grazing food chain is the major conduit for energy flowB. In terrestrial ecosystem, a large fraction of energy flows through detritus food chainC. The detritus food chain begins with dead organic matterD. Primary consumers belong to the first trophic level |
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Answer» Correct Answer - D All animals depend on plants directly or indirectly for their food needs. They are hence, called consumers and also heterotrophs. If they feed on the producer, the plants (belonging to the first trophic level), they are called primary consumers. Obviously the primary consumers will be herbivores. Some common herbivores are insects, birds and mammals in terrestrial ecosystem and molluscs in aquatic system. Thus primary consumers belong to the second trophic level. |
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