The food chain must start with a plant horse? 20

No. Because the disciplines of application are different, the origin of the biological chain is also different. To put it simply, the food chain has applications in nutrition, electricity, marine science and technology, entomology, ecology, fisheries, soil science, resource science and technology, etc., and the initial organisms in each applied discipline are different.

No, for example.

Fish in the ocean eat polyps, and polyps are tiny and their food is smaller, tiny creatures in the ocean.

From this point of view, most of the food chains in the ocean do not start with plants, most of them should start with some simple plankton.

There are three types of food chains, one is the predator chain, the food chain in high school specifically refers to the predator chain, for the predation chain, it should start from the producer, excluding the decomposer; the second is the parasitic chain; The third is the saprophytic chain (including decomposers). The latter two did not start with producers.

In fact, it is not only plants that are producers, such as: fungi, mushrooms, bacteria, nitrifying bacteria.

That's why the book says that "the food chain usually starts with greenery".

No, plants are common at the bottom of the food chain, and there are some microorganisms.

Start with the producer, so to speak, to the consumer, to the decomposer.

Big fish eat small fish, small fish eat shrimp and shrimp, and shrimp eat mud;

If we say from a certain point of view, the food chain should start with inorganic matter;

The food chain that plants start with is more talked about in books.

Summary. Plants are producers in the ecosystem, animals are consumers in the ecosystem, and animals and plants form food chains and food webs through the relationship between eating and being eaten. The food chain is a chain-like structure formed by the relationship between producers and consumers who eat and are eaten

Grass Rabbit Hawk, Grass Rabbit Fox, Grass Squirrel Fox, Grass Squirrel Hawk, Grass Squirrel Snake Hawk, so the food web has 5 food chains; The more trophic levels, the longer the food chain, and the longest one is: grass rat, snake, eagle. Hope it helps you <>

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Plants are producers in the ecosystem, animals are consumers in the ecosystem, and animals and plants form food chains and food webs through the relationship between eating and being eaten. The food chain is a chain-like structure formed by the relationship between producers and consumers between eating and being eaten, and the food chain includes: grass rabbit eagle, grass rabbit fox, grass mouse fox, grass mouse limb eagle, grass mouse snake eagle, so there are 5 food chains in the food network; The more trophic levels, the longer the food chain, and the longest one is:

Grass rats, snakes, eagles. Hope it helps you <>

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There are animals and plants on the earth, how do animals and plants form the food chain? The relationship between producers and consumers in the ecosystem is mainly to eat and be eaten, thus forming the food chain. Food webs are formed by interlocking food chains.

The food chain is the relationship between the producer and the consumer, and the decomposer is not involved in the formation of the food chain. Matter and energy are green plants that move along the food chain and food web, producing organic matter through photosynthesis. Organic matter stores energy from sunlight.

The organic matter produced by plants not only feeds the plants themselves but also provides food for the survival of the animals.

Therefore, the food chain usually starts with the producer. The food chain is the relationship between producers and consumers who eat and are eaten. The organisms of the latter link eat the organisms of the previous link, for example, in the food chain grass rabbit eagle, eagle eats rabbit, rabbit eats grass.

So the relationship between the organisms in the latter link and the organisms in the previous link is a predatory relationship. The correct way to write the food chain is: producer, primary consumer, secondary consumer.

A complete food chain consists of producers and consumers. The food chain refers to the relationship between producers and consumers in an ecosystem. The first trophic level of a complete food chain must be the producer.

The food chain is mainly formed by the relationship between eating and being eaten, thus forming the food chain. Food webs are formed by interlocking food chains. The food chain is the relationship between the producer and the consumer, and the decomposer and abiotic parts are not involved in the formation of the food chain.

Green plants can produce organic matter through photosynthesis.

Organic matter stores energy from sunlight. The organic matter produced by green plants not only feeds the plants themselves, but also provides food for the survival of animals, so green plants are producers; Consumers mainly refer to various animals, unable to photosynthesize, and directly or indirectly request food from plants.

In an ecosystem, the chain structure formed between different organisms due to the relationship between eating and being eaten is called the food chain. The food chain is written in such a way that the producer (plant) as the starting point and the uneaten animal as the end point, with the arrow pointing in the direction of the predator. It can be seen that the indispensable components of the food chain structure are animals and plants.

Plant.

The term "foodchain" is an ecological term first proposed by the British animal ecologist Elton in 1927. It refers to a connection formed between various animals and microorganisms in the ecosystem due to the feeding relationship, because this connection is like a chain, one link after another, so it is called the food chain.

The food chain reveals the laws of matter circulation and energy flow in biological systems, pointing out that when matter and energy are transformed from one organism to another, the biomass of the latter (higher trophic level) is about one-tenth of the biomass of the former (lower trophic level). The various levels of organisms that make up the food chain are arranged into a pyramid according to a certain amount of relationships, from large to small.

The food chain is a complex and interlocking system in which living organisms are interdependent with each other and with the environment. Nutrients are also passed from one organism, plant, or animal to another. No life form on Earth can be isolated and independent of the environment or other life forms, whether marine or terrestrial, all of which combine to form a never-ending cycle of life and death.

Countless tiny creatures form the base of the food chain, while at the top are large creatures.

The food chain, which is based on greenery and begins with herbivores as an ode, is called:

a.The grass pasture food chain (predation chain) is chaotic.

b.Tofu and Zheng Sheng food chain (decomposition of food chain).

Correct Answer: a

Summary. However, plants and animals obtain organic matter in different ways: plants obtain energy by "making" organic matter through photosynthesis, while animals obtain it by eating.

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Hello [than heart], it is the energy required by plants and animals that is transmitted sequentially between organisms along the food chain.

Knowledge expansion: In the natural world, each plant and animal needs certain living conditions, among which the acquisition of organic matter (nutrients, energy) is one of them.

Knowledge expansion: In the natural world, each plant and animal needs certain living conditions, among which the acquisition of organic matter (nutrients, energy) is one of them.

However, plants and animals obtain organic matter in different ways: plants obtain energy by "making" organic matter through photosynthesis, while animals obtain it by eating.

Okay thank you. So the energy required by plants and animals is transmitted sequentially among the organisms along the food chain.

Well, thank you

Good. OK [than heart].

Producers are autotrophs, plants and microorganisms that synthesize organic matter from simple inorganic matter, and the interdependent chain of plants and microorganisms providing food to each other (2) is wrong.

Reason: The food chain is made up of animals, excavators, and decomposers: in fact, the composition of the ecosystem is divided into two parts: the "inorganic environment" and the "Zen potato biome", so it is correct.

Yellow Sparrow. Swallow.

Mantis. Congratulations

Locust. Moths.

Cropper. (Both crops and weeds can photosynthesize).

4) Right. The reason is that the inorganic environment is an abiotic part of the ecosystem.

But in junior high school, it is not necessary to grasp it in such detail; Biomes are made up of producers. (Soil is not) 3) right. Cause.

Plants, in general, act as producers in the food chain (with a few exceptions not discussed). The number of producers is the basis that determines the entire food chain, and from this point of view, more producers are beneficial to the entire food chain.

But! We can't just look at it from that perspective. In the ecosystem, there are countless food chains that make up the food web. The excessive increase of plants will inevitably cause turmoil in the entire ecosystem, so too much is not good.

In short, within a certain range, the more plants there are, the more stable this food chain will be, but too much will affect the entire ecosystem.