题目内容
（请给出正确答案）
A、Weight of organisms in an trophic level
B、Number of individuals in each trophic level
C、Energy in each trophic level
D、Biomass in each tropic level
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更多“The pyramid of energy shows the”相关的问题
Which of the following statements is true？
A．When sunlight strikes an object, all the energy is absorbed.
B．When sunlight strikes an object, all the energy is reflected.
C．Snow reflects all the energy from the sun.
D．Snow contributes to the low temperatures of winter.
Why are subterranean buildings good for energy conservation？
A．Because they use solar energy.
B．Because they don't need central heating.
C．Because the temperature there remains constant.
D．Because they don't need air-conditioning.
Why does the repair process of the DNA may finally fail？
A．Because short-wave radiant energy breaks the strands of the DNＡ.
B．Because the DNA may produce a colony of cancer cells.
C．Because enzymes work to rearrange the DNA into a new order.
D．Because the patient is exposed to UV form. time to time.
Which of the following sounds like an implied solution to the energy dilemma？
A．Solar energy.
B．Fossil fuels.
C．New nuclear plants.
D．No nuclear plants.
The passage is mainly written to ______.
A．introduce a new concept
B．compare different energy sources
C．stress the importance of gasoline
D．discuss solutions to global warming
German chemicals giant BASF saves ？200 million a year by ______.
A．recycling heat and energy
B．setting up factories in China
C．using the newest technology
D．reducing the CO2 emissions of its plants
In Para. 3, the author implies ______.
A．electric power industry depends on renewable energy
B．economic factor influenced the use of renewable energy
C．electricity restructuring laws have been made
D．legislation will hinder the consumption of renewable energy
The DOE report found the extended DST________ ．
A.could only save a small amount of energy
B.was helpful for saving electricily because the overall consumption was huge
C.could reduce annual energy consumption of the whole country by 50%
D.hardly did any good to energy—saving
What did the researchers find in the experiment？
A. One chimp used about the same energy in walking on two legs as on all fours
B. Human walking used more energy than bipedal walking in chimps.
C. Two chimps used more energy walking on two legs.
D. Three chimps used less energy walking on two legs.
A、Pyramid of number
B、Pyramid of biomass
C、Pyramid of energy
D、Pyramid of materials
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