Exercise
Form 14: Quantitative Ecosystem Calculations
In this exercise, students will dive into the intricacies of quantitative ecosystem calculations, analyzing data sets on biodiversity, population dynamics, and resource distribution to understand the delicate balance of ecosystems. Join us to develop your skills in environmental science and become a future steward of our planet!
Questions
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MultiChoice
A field of grass captures 80,000 kJ of solar energy. How much energy is stored in caterpillars eating the grass?
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MultiChoice
If small birds eat the caterpillars (8,000 kJ available), how much energy reaches the birds?
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MultiChoice
If hawks eat the small birds (800 kJ available), how much energy reaches the hawks?
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MultiChoice
What percentage of the original 80,000 kJ of grass energy reached the hawks?
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MultiChoice
If a tertiary consumer level has 45 Joules of energy, how much energy was present at the primary consumer level?
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MultiChoice
A cornfield provides 100,000 kcal. How many kcal reach humans if they eat the cows that ate the corn?
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MultiChoice
How many kcal reach humans if humans eat the corn directly instead of feeding it to cows?
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MultiChoice
Why can a plot of land support more vegetarian human diets than meat-based diets?
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MultiChoice
If 90% of energy is lost at each step, what is the ecological efficiency rate?
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MultiChoice
If producers hold 50,000 units of energy and decomposers process dead primary consumers (5,000 units), what was the energy loss from producers to herbivores?
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MultiChoice
An ecosystem receives 1,000,000 solar calories. Plants convert 1% into chemical energy. How many calories do plants store?
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MultiChoice
From the 10,000 calories stored by plants in the previous question, how much reaches secondary consumers?