“Food chains are an accurate representation of energy flow through an ecosystem.” This statement is: c) false; real ecosystems are much more complex than simplified food chains.
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Is a food web or a food chain a more accurate representation of how energy and matter flow in an ecosystem?
Food webs consist of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems. Energy transfer between trophic levels is inefficient—with a typical efficiency around 10%. This inefficiency limits the length of food chains.
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Is a food chain the most accurate model of an ecosystem?
Food chains are linear aspects of food webs that describe the succession of organisms consuming one another at defined trophic levels. Food webs are a more accurate representation of the structure and dynamics of an ecosystem. Food chains are easier to model and use for experimental studies.
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Does energy flow in a food chain?
Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
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Which is the correct representation of energy flow through an ecosystem?
Pyramids of energy are usually upright and are the best representation of energy flow and ecosystem structure.
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Is a food chain or a food web more accurate to an ecosystem?
The trophic levels are producers, consumers and decomposers. A food web portrays an ecosystem in a more realistic way than a food chain because food chains are so simple. Food chains imply that organisms eat only one type of food which is rarely true.
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Why is food web a more accurate representation of the feeding relationships in ecosystem than a food chain?
Food webs are more realistic because they show that the producers are usually eaten by many different consumers and most consumers are eaten by more than one predator. A food web is the natural interconnection of food chains and generally a graphical representation of what-eats-what in an ecological community.
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Is a food web more important than a food chain?
You can challenge students to consider, why might food webs be more useful than food chains? Food webs show how living things are dependent on one another. In a food web changes in the number of one species can affect the number of (population) another species even though the two aren’t directly connected.
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Why is a food web a better representation of energy flow than a food chain?
The food web provides a better model of an ecosystem because the food web is a model between MANY different consumers and producers in an ecosystem. While the food chain is a model for just one consumer and producer. energy moves up a food chain.
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What is the most accurate model of an ecosystem?
The most accurate model that illustrates the flow of energy and matter in an ecosystem is a food web. A food web is made up of interconnected food chains. It is more complex and much larger than a food chain since it shows the feeding relationships of many producers and consumers at each trophic level.
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Which is more accurate food chain or food web?
The feeding relationships of organisms in the real world is almost always more complex than suggested by a food chain. For that reason, the term food web is more accurate than is food chain.
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Is the food chain accurate?
Food chains imply that organisms eat only one type of food which is rarely true. Food webs provide accurate information about the complexity of feeding relationships in an ecosystem whereas food chains are just linear diagrams that display feeding relationships between a few organisms.
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Why is a food web a more accurate representation than a food chain?
In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain. Food webs consist of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems.
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Does energy flow through a food chain?
Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
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Which way does the energy go in a food chain?
In a food chain, energy flows from the producers to the consumers and then to the decomposers. Consumers can eat strictly producers or plants or they can eat both other consumers and producers or they can eat strictly other consumers. The decomposers get their energy from dead and decaying consumers.
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What is the flow of a food chain?
Food webs illustrate energy flow from primary producers to primary consumers (herbivores), and from primary consumers to secondary consumers (carnivores).
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