Ecosystem Energy Flow Quiz

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Energy flow & cycling in ecosystems

Angela Sanders

United States

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Ecosystem Energy Flow Quiz


Froggy Jumps Ecosystem Energy Flow QuizVersion en ligne Energy flow & cycling in ecosystems par Angela Sanders 1 Which process converts light energy into chemical energy in plants? a Photosynthesis b Respiration c Fermentation 2 What process releases energy by breaking down glucose in cells? a Fermentation b Respiration c Photosynthesis 3 In an energy pyramid, which level contains the least energy? a Top consumers b Primary consumers c Producers 4 Why is cycling of carbon, oxygen, nitrogen, phosphorus, and hydrogen necessary in ecosystems? a To produce oxygen for all organisms b To reuse essential nutrients c To balance gravity in ecosystems 5 Who are the primary producers in most ecosystems? a Herbivores b Top predators c Plants and algae 6 What is the general rule of energy transfer between trophic levels? a About 10% of energy is transferred b Energy increases at higher levels c All energy is transferred 7 What is the role of decomposers in nutrient cycling? a Create energy from heat b Recycle nutrients back to the soil c Consume all producers 8 Which gas is a major component of the carbon cycle? a CO2 b N2 c O2 9 Which nutrient is commonly a limiting factor in aquatic systems? a Calcium b Potassium c Nitrogen 10 How do photosynthesis and respiration jointly affect atmospheric CO2? a They both remove CO2 b They neither affect CO2 levels c Phot. removes CO2, resp. releases CO2