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Organisms of a higher trophic level which feed on several types of organisms belonging to the lower trophic levels constitute to the
A. Food web
B. Ecological pyramid
C. Ecosystem
D. Food chain

Answer
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Hint: The number of steps it takes from the beginning of the chain is the trophic stage of an organism. Raymond Lindeman (1942) developed the definition of the trophic stage based on August Thienemann 's terminology (1926): "producers", "consumers" and "reducers" (modified by Lindeman to "decomposers").

Complete Answer:
- The location it occupies in a food web is the trophic stage of an organism. A food chain is a series of species that consume other species and can be eaten by themselves in turn.
- A food web begins with primary producers such as plants at trophic level 1, can pass to herbivores at level 2, carnivores at level 3 or higher, and usually finishes at level 4 or 5 with apex predators.
- Either a one-way flow or a food "web" may shape the route along the chain.More complex trophic pathways are created by ecological communities with greater biodiversity.
- As producers , consumers, and decomposers, the three essential ways in which organisms get food are.
- Trophic levels can be represented by numbers, beginning with plants at level 1.

Subsequently, more trophic stages are numbered according to how far the organism lives down the food chain.
Stage 1: Plants and algae make food of their own and are referred to as producers.
Stage 2: Plants are consumed by herbivores and are considered primary consumers.
Stage 3: Secondary consumers are called carnivores who eat herbivores.
Stage 4: Tertiary consumers are called carnivores that eat other carnivores.

- By definition, Apex Predators have no predators and are at the top of their network of food.
- Additionally, species known as decomposers eat and break down dead plants and animals. Examples of decomposers include fungi. Dead organic material is eaten by other species known as detritivores. A vulture is an example of a detrivore. Via the various trophic stages, energy flows. It starts with the sun's energy that autotrophs use to generate food.
- This energy is passed to the levels when representatives of the levels that are above them eat the various species. Around 10 percent of the energy that is transferred to biomass from one trophic stage to the next is transformed.
- Biomass refers to an organism's total mass or the mass of all species living at a given trophic level. Only a part of the energy consumed is retained as biomass, because organisms expend energy to travel about and go about their everyday activities.
- The diagrammatic representation of the relationship between numbers, biomass and the energy content of producers and consumers in an ecosystem is an ecological pyramid.
- The ecosystem is a group of organisms that communicate with each other and with their environment or environment.

The correct answer is option (A) Food web.

Note: Significant terms are bioaccumulation and biomagnification. Bioaccumulation is the accumulation within an animal of a substance, such as a toxin or contaminant. Biomagnification refers to the concentration buildup and increase of that material when it is distributed in a food web from the trophic level to the trophic level.
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