Most animals are part of more than one food chain and eat more than one kind of food in order to meet their food and energy requirements. These interconnected food chains form a food web.The following is a possible food web: Note that the arrows are drawn from food source to food cons...
食物网(foodweb)又称食物链网或食物循环。在生态系统中生物间错综复杂的网状食物关系。实际上多数动物的食物不是单一的,因此食物链之间又可以相互交错相联,构成复杂网状关系。在生态系统中生物之间实际的取食和被取食关系并不象食物链所表达的那么简单,食虫鸟不仅捕食瓢虫,还捕食蝶蛾等多种无脊椎动物,而且食虫鸟本身...
plants are eaten by herbivores, which are then eaten by carnivores. These carnivores are in turn eaten by other carnivores. ♦ Many species of animals in an ecological community feed on both plants and animals, creating a complex system of interrelated food chains known as afood web. See mo...
the second of primary consumers, the third of secondary consumers, and so on. There usually are no more than four or five trophic levels in a food chain or web. Humans may fall into second, third, and fourth trophic levels of food chains or we...
Foodchainandfoodweb Keywords ••••••••••••••Primaryproducer(初级生产者)Primaryconsumer(初级消费者)Secondaryconsumer(次级消费者)Tertiaryconsumer(三级消费者)Quandaryconsumer(四级消费者)Decomposer(分解者)Trophiclevels(营养级)Autotroph(自养的)Heterotroph(异养的)Saprotroph(...
Indeed, several differentplants and animalsdepend upon this creation to survive, which is where food chains and food webs creep in! A food chain is a system used to transmit energy from one organism to the next. When these systems are used inecology, they are known as the food web. ...
Some food chains include the sun as a provider of energy to living things. Others include decomposers–fungi and bacteria that break down organic matter and fertilize the producers. Animals in a food chain or web often are classified as herbivores (plant-eaters), omnivores (plant- and animal-...
Food chain:A sequence of organisms starting with a producer (usually a plant), followed by the animal that eats the plant, then an animal that eats that animal and so on to the "top carnivore" an animal that eats others but is not killed and eaten by any other. Though everything event...
必应词典为您提供Food-chain-and-food-web的释义,网络释义: 食物链及食物网;食物链和食物网;
Food web, a complex network of interconnecting and overlapping food chains showing feeding relationships within a community. A food chain shows how matter and energy from food are transferred from one organism to another, whereas a food web illustrates h