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Why do sheep eat grass by wolves and deer eat grass by leopards?
Extended content:
The food chain is also called "nutrition chain". In order to maintain their own life activities, all kinds of creatures in the ecosystem must feed on other creatures, which is a chain relationship with food as the link. This feeding relationship is actually a relationship in which solar energy is transferred from one organism to another, that is, material energy flows and transforms through the food chain. A food chain generally includes 3-5 links: a plant, a plant-eating animal and one or more carnivores. Organisms at different links in the food chain. Its number is relatively constant to keep the natural balance.
The chemical energy stored in organic matter in the ecosystem is transmitted layer by layer in the ecosystem. Generally speaking, it is a sequence in which various organisms are interrelated through a series of relationships between eating and being eaten, which is called the food chain in ecology.
For example, grass, rabbits, foxes and wolves-valley plants-insects-insect-eating birds-eagles.
The chemical energy stored in organic matter in the ecosystem is transmitted layer by layer in the ecosystem. Generally speaking, all kinds of creatures are closely linked with each other through a series of eating and being eaten. The sequence of these organisms related to each other through food nutrition relationship is called food chain in ecology. According to the relationship between organisms, the food chain can be divided into predatory food chain, scavenging food chain (scavenging food chain) and parasitic food chain.
Herbivores are called first-class consumers. They devour plants to get the food and energy they need. This kind of animals, such as some insects, mice and wild boar, walk all the way to the elephant. Herbivores are also preyed by carnivores, who are called second-class consumers. For example, ladybugs feed on aphids and weasels feed on mice, so ladybugs and weasels can also be called first-class carnivores.
There are also some large carnivores that prey on small carnivores, such as foxes, wolves and snakes, which are called third-class consumers or second-class carnivores. There are other carnivores, such as lions, tigers, leopards, eagles and vultures, which feed on second-class carnivores, that is, fourth-class consumers or third-class carnivores.
References:
Food chain? Baidu baike
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