Which of the following is true about the efficiency of energy transfer in an ecosystem?a.The more energy the organism requires, the more efficient the energy transfer.b.All energy transfers have the same efficiencies.c.The less energy the organism requires, the more efficient the energy transfer.d.The most efficient energy transfers are in large, warm-blooded animals.
Using prescribed wildfires can prevent natural wildfires from posing as great a risk to property owners.
Which of the following best explains why ecosystems need a continual influx of new energy?a.Photosynthesis feeds herbivores, carnivores, and decomposers.b.As energy is recycled, a small amount is lost as heat.c.Energy flows through an ecosystem and cannot be recycled.d.Cellular respiration does not feed back into other processes.
Which of the following statements about wildfires in deciduous forests is not true?a.Deciduous forests are unaffected by wildfires.b.Lichen and moss growth increases in deciduous forests as a result of wildfires.c.Nutritional quality of new growth increases temporarily after a wildfire.d.The quantity of trees in deciduous forests is unaffected when it occurs less than once every five years.
What is the effect of wildfires on biodiversity?a.temporary decrease, but long-term increaseb.temporary increase, but long-term decreasec.increasesd.decreases
By which process do plants obtain carbon from the atmosphere?
Which shows the most direct path that carbon can take through the carbon cycle?
Which process is performed by both plants and animals to break down sugars to provide energy in the form of ATP?
Which macromolecule is the main source of energy for living things?
Explain why energy in most ecosystems must flow from the sun, then to autotrophs and finally to heterotrophs, in that order.
Explain why cold-blooded organisms like reptiles have a higher rate of secondary productivity than warm-blooded mammals.
Explain how wildfires help restore soil nutrients to forest ecosystems.
Wildfires benefit forest ecosystems by _______.a.stimulating growthb.reducing underbrushc.stimulating plant reproductiond.all of the above
Which of the following is not a direct fate of the energy flowing through photosynthesis?a.carnivoresb.cellular respirationc.herbivoresd.heat sinks
What are some possible consequences of preventing prescribed burns and natural wildfires?
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