What is true of an ecosystem?
Correct answer: C. Producers are more than primary consumers.
- A. Primary consumers are the least dependent upon producers.
- B. Primary consumers outnumber producers.
- C. Producers are more than primary consumers.
- D. Secondary consumers are the largest and most powerful.
Explanation
An ecosystem may be defined as a structural and functional unit of the biosphere comprising living organisms and their nonliving environment that interact by means of food chains and chemical cycles resulting in energy flow, biotic diversity, and material cycling to form a stable, self-supporting system. The organisms in an ecosystem are classified into 3 main categories, i.e. producers, consumers, and decomposers. The consumers utilize materials and energy stored by the producers. Decomposers obtain their food molecules from the organic materials of dead producers and consumers. In a true ecosystem, producers are more than consumers (herbivores and carnivores).
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About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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