第一节 思考题--名词解释生态系统(ecosystem)√食物链(food chain)食物网(food web)√碎屑食物链(detrital food chain)
food chain, models, ecosystems, food webs, ecosystem engineeringEcosystem engineering, the physical modification of the environment by organisms, is a common and often influential process whose significance to food web structure and dynamics is largely unknown. In the light of recent calls to expand ...
1234567DefinitionofSystem(definition);PropertiesofEcosystem(component,structure);Componentsofecosystem;FoodChainandFoodWeb;TrophicLevelandEcologicalPyramid;EcologicalEfficiency;BalanceofNatureandFeedbackofEcosystem.1.DefinitionofSystem Anyorganizedassemblyofresourcesandproceduresunitedandregulatedbyinteractionor...
A food chain has organisms that producers and organisms that are consumers. Consumers are obtain food by eating other living things. Producers like plants and algae make their own food. A food chain shows the flow of energy in an ecosystem. Energy from the sun allows producers to make their ...
A food chain shows the direction of energy flow from one species to another. For example, an arrow from A to B means that A is being eaten by B and therefore indicates the direction of the energy flow. 5.1.5 Describe what is meant by a food web. ...
8、ructure v nutrition structure of ecosystemFood chain and food web Food chains and food webs are representations of the predator-prey relationships between species within an ecosystem or habitat.LOGOnutrition structure v nutrition structure of ecosystemLOGOClassification v land ecosystemsforest ecosy 9...
微生物）（bacterium【pl.bacteria】andfungus【pl.fungi/funguses】）protozoan/protozoa（原生动物）smallinvertebrates（小型无脊椎动物）nutritionstructure LOGO nutritionstructureofecosystem Foodchainandfoodweb Foodchainsandfoodwebsarerepresentationsofthepredator-preyrelationshipsbetweenspecieswithinanecosystemorhabitat.
Africa's grassland, or savanna, ecosystem is an open, grass-covered land with small, interspersed trees. Its diverse species play specific and important roles. Food chains trace the transfer of energy from one organism to another in an ecosystem. They ar
The bioaccumulation of methylmercury in fish and its biomagnification through the food chain is a major public health concern. Differences in fish methylmercury concentration observed between China and the United States highlight the need for a better understanding of region-specific factors that drive ...
- the living and nonliving things that interact in an environment. Food Chain- shows how energy passes form one organism to another in an ecosystem. Food web- shows how food chains are linked together. Herbivore- an animal that eats plants. Producer- an organism that makes its own food....