ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1.0 kcal
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10 kcal
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100 kcal
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10, 000 kcal
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Detailed explanation-1: -If a grassland ecosystem has 10, 000 kilocalories (kcal) of energy concentrated in vegetation, only about 1, 000 kcal will be transferred to primary consumers, and very little (only 10 kcal) will make it to the tertiary level.
Detailed explanation-2: -At the primary consumer level, the available energy is measured to be 1000 kilocalories (kcal).
Detailed explanation-3: -If 10, 000 joules of energy is available to the producer, then only 1000 joules of energy will be available to the primary consumer and only 100 joules of energy will be available to the secondary consumer. The energy available with the tertiary consumer will be 10 joules of energy.
Detailed explanation-4: -In a certain ecosystem, the primary producers represent 100, 000 kcal of energy.