The downward arrows between trophic levels D. The arrows within E. ach trophic level 相关知识点: 试题来源: 解析 B。解析:在表示生态系统能量流动的图中,营养级之间向上的箭头表示能量传递,向下的箭头不符合能量流动方向,营养级内部的箭头不表示能量损失,而每个营养级向侧面的箭头表示以热能形式散失的能量。
The first step in energy flow in an ecosystem is: A. photosynthesis by producers B. consumption by consumers C. respiration by decomposers D. breakdown of waste by decomposers 相关知识点: 试题来源: 解析 A。生态系统中能量流动的第一步是生产者通过光合作用固定能量。选项 B 消费者的消费不是第一...
People plant a great number of young trees in the mountains.When the trees grow big and tall enough, they are cut down by workers and carried out of the mountains to the paper mill where fine paper is made from wood.Then it is taken to every corner of the country and used for differe...
Energy Flow in the EcosystemRicklefs, Robert E
'Energy flow' defines the transportation of energy via living organisms inside the ecosystem. In a food chain, every level is called a trophic level...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answe...
百度试题 结果1 题目Each step in the flow of energy through an ecosystem is known as a___. ( ) A. food chain B. food web C. consumer D. trophic level 相关知识点: 试题来源: 解析 D 反馈 收藏
Which of the following shows the correct energy flow in an ecosystem? A. animals → plants → sun B. sun → plants → animals C. animals → sun → plants D. plants → animals → sun 相关知识点: 试题来源: 解析 B。生态系统中正确的能量流动是从太阳到植物(生产者通过光合作用固定太阳能)...
Energy Flow Through an Ecosystem ENERGY FLOW IN ECOSYSTEM How does energy flow in an ecosystem? What is an energy pyramid? What is a trophic level? ENERGY ENTERS ECOSYTEM All energy in ecosystem comes from the sun First law of Thermodynamics: Energy cannot be created or destroyed (but it can...
A new result is the role of storage in diversifying path structure and increasing flows in networks. The basis for this is examined through influence theory of mathematical graphs, with the conclusion that energy storage as biomass is the root cause of ecosystem energy cycling. Issues of food ...
Consider the energy flow in an ecosystem. The sun provides energy to plants. When a rabbit eats the plants, only a part of the plant's energy is transferred to the rabbit. Why? A. Some of the plant's energy is used for the plant's growth B. The rabbit cannot digest all the plant...