(2003). Students´understanding of energy flow and matter cycling in the context of the food chain, photosynthesis, and respiration. International Journal of Science Education, 25, 1529-1544.Lin, C.-Y., & Hu, R. (2003). Students’ understanding of energy flow and matter cycling in the ...
This phenomenon is usually addressed as 'recycling' or simply cycling of energy–matter, and it is an important feature of natural systems. This article provides an overview of cycling and cycling indices in ecosystems ecology: first, the concept of cycle in food webs and ecological networks is...
There will always be somebody ahead of you in one way or another. What you should do is just run your own race and wish others well. Wherever you go, no matter what the weather, always bring your own sunshine.回答下面5个问题, 每题答案不超过5个词。(1)What did the writer decide to ...
(12)___ inthesetrips.Nomatterhowfarthe(13)___was,I couldgettherewithoutanysupport.Theseweretheadventuresofmylife,andtheywere (14)___ memories.Withcycling,thesuccessorfailure(15)___ notonluckorconditionsbutonmealone.(1)A.exchangedB.comparedC.impressedD.contacted(2)A.strongB.happyC.wiseD.cre...
1.the theory that everything in the universe is produced by matter in process, capable of explanation by the laws of chemistry and physics. 2.the theory that a natural process is machinelike or is explainable in terms of Newtonian mechanics. —mechanist,n.—mechanistic,adj. ...
aIf two can keep a secret is one of them is dead 如果二可能保持秘密是他们中的一个是死的[translate] a(for example, Lindeman 1942; Lotka 1925) and carbon cycling and energy flows (Odum 1957, 1959, 1960). (例如, Lindeman 1942年; Lotka 1925年)和碳循环和能流(Odum 1957年, 1959年, 1960...
I was cycling(骑自行车) and saw a person 250 meters in front of me. I could tell he was cycling a little slower than me and decided to try to catch him. I had about a kilometer to go on the road before turning off. So I started cycling faster and faster and every block(街区),...
No matter how far the 13 was, I could get there without any support. These were the adventures of my life, and they were 14 memories. With cycling, the success or failure 15 not on luck or conditions but on me alone. 1. A. exchanged B. compared C. impressed D. contacted 2. A...
as locks can be opened only by their own keys. Contrary to this, a malignant transformation can be brought about by an infinite number of unspecific influences, such as pieces of asbestos, high-energy radiation, irritation, chemicals, viruses, etc. It is getting more and more difficult ...
There will always be somebody ahead of you in one way or another. What you should do is just to run your own race and wish others well. Wherever you go, no matter what the weather is like, always bring your own sunshine. 1. How did the writer catch up with the person? A. By ...