FOOD CHAIN & FOOD WEB ppt.
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The document discusses food chains, food webs, and energy pyramids. It provides examples of food chains like grass-grasshopper-frog-snake-hawk. A food chain follows a single path while a food web shows multiple connections between plants and animals. An energy pyramid models the trophic levels in a community from producers at the bottom to primary and secondary consumers at higher levels. It also includes review questions to test understanding.
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Food Chain to Food Web
- Food webs show the complex system of energy transfer between organisms in an ecosystem, with multiple interconnected food chains. Plants produce energy from the sun which is then consumed by herbivores or primary consumers, which are then consumed by secondary consumers like birds or lizards, ultimately ending with top predators like eagles.
- A food web diagram depicts these multiple overlapping food chains within an ecosystem, allowing energy to be transferred through different pathways from producers to various consumers. Tracing the food chains within a sample food web, there are five distinct pathways that all end with the eagle as the top predator.
Food Chain and Webs
A food chain shows how energy passes from producers like plants through consumers like herbivores and carnivores to decomposers. Producers make their own food through photosynthesis. Consumers cannot make their own food and include herbivores that eat plants, carnivores that eat other animals, and omnivores that eat both. Decomposers break down dead organisms and return nutrients to the soil. A food web connects multiple overlapping food chains to more accurately depict feeding relationships in an ecosystem.
Food chain
The document discusses food chains and how energy passes between organisms. It asks questions about what the source of energy is for plants, why plants need energy, what happens to the energy stored in plants when animals eat them, and how the process of energy passing from one organism to another is shown. It defines that in a food chain, plants are the producers as they can make their own food, while animals are consumers as they cannot make their own food and obtain energy by consuming other organisms.
Food Chains
A food chain shows how energy is transferred between organisms in an ecosystem. All food chains start with the sun, as it provides the original energy. A food chain consists of producers like algae or plants that use sunlight, consumers that eat producers or other consumers, and decomposers like bacteria and fungi that break down dead organisms. An example wetland food chain is: sun -> algae -> copepod -> small fish -> salamander.
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Food chains show how organisms are linked through feeding relationships, with energy flowing from producers to primary, secondary, and tertiary consumers. Food webs depict a more complex and realistic set of interlocking food chains in an ecosystem. Within food chains and webs, organisms can be grouped into trophic levels based on their position - with producers on the first trophic level and top carnivores on the highest level. Significant changes to populations within an ecosystem, such as removing producers, can destabilize food chains and negatively impact other organisms.
Food chains
This document discusses food chains and food webs. A food chain shows how energy passes from one organism to another, starting with producers like plants using sunlight, then consumers that eat the producers or other consumers, and ending with decomposers that break down waste. A food web is more complex than a food chain, showing how multiple food chains interconnect through different organisms consuming each other and being consumed.
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This document discusses food chains and ecosystems. It defines a food chain as showing what eats what in an ecosystem. An ecosystem includes all the animals, plants, and their habitats that provide everything needed to sustain life. This particular food chain shows plants being eaten by slugs, slugs eaten by frogs, and frogs eaten by herons. Most food chains begin with a green plant that acts as a producer, making its own food. Animals that eat plants or other animals are consumers. Predators are animals that hunt and eat other animals, while prey are animals that are hunted and eaten. Energy flows through the food chain as each organism eats another to gain energy, keeping the ecosystem alive.
Food Chains And Food Webs
Food chains and food webs describe how energy moves through an ecosystem. A food chain represents a single path of energy transfer between organisms, such as from berries to rabbits to foxes. A food web shows multiple interconnected food chains and demonstrates that most organisms obtain energy from many different sources. Producers, like plants, capture energy from the sun to start the process, while consumers obtain energy by eating other organisms, and decomposers break down waste to recycle nutrients and energy back into the system.
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Food Chain to Food Web
- Food webs show the complex system of energy transfer between organisms in an ecosystem, with multiple interconnected food chains. Plants produce energy from the sun which is then consumed by herbivores or primary consumers, which are then consumed by secondary consumers like birds or lizards, ultimately ending with top predators like eagles.
- A food web diagram depicts these multiple overlapping food chains within an ecosystem, allowing energy to be transferred through different pathways from producers to various consumers. Tracing the food chains within a sample food web, there are five distinct pathways that all end with the eagle as the top predator.
Food Chain and Webs
A food chain shows how energy passes from producers like plants through consumers like herbivores and carnivores to decomposers. Producers make their own food through photosynthesis. Consumers cannot make their own food and include herbivores that eat plants, carnivores that eat other animals, and omnivores that eat both. Decomposers break down dead organisms and return nutrients to the soil. A food web connects multiple overlapping food chains to more accurately depict feeding relationships in an ecosystem.
Food chain
The document discusses food chains and how energy passes between organisms. It asks questions about what the source of energy is for plants, why plants need energy, what happens to the energy stored in plants when animals eat them, and how the process of energy passing from one organism to another is shown. It defines that in a food chain, plants are the producers as they can make their own food, while animals are consumers as they cannot make their own food and obtain energy by consuming other organisms.
Food Chains
A food chain shows how energy is transferred between organisms in an ecosystem. All food chains start with the sun, as it provides the original energy. A food chain consists of producers like algae or plants that use sunlight, consumers that eat producers or other consumers, and decomposers like bacteria and fungi that break down dead organisms. An example wetland food chain is: sun -> algae -> copepod -> small fish -> salamander.
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Food chains show how organisms are linked through feeding relationships, with energy flowing from producers to primary, secondary, and tertiary consumers. Food webs depict a more complex and realistic set of interlocking food chains in an ecosystem. Within food chains and webs, organisms can be grouped into trophic levels based on their position - with producers on the first trophic level and top carnivores on the highest level. Significant changes to populations within an ecosystem, such as removing producers, can destabilize food chains and negatively impact other organisms.
Food chains
This document discusses food chains and food webs. A food chain shows how energy passes from one organism to another, starting with producers like plants using sunlight, then consumers that eat the producers or other consumers, and ending with decomposers that break down waste. A food web is more complex than a food chain, showing how multiple food chains interconnect through different organisms consuming each other and being consumed.
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This document discusses food chains and ecosystems. It defines a food chain as showing what eats what in an ecosystem. An ecosystem includes all the animals, plants, and their habitats that provide everything needed to sustain life. This particular food chain shows plants being eaten by slugs, slugs eaten by frogs, and frogs eaten by herons. Most food chains begin with a green plant that acts as a producer, making its own food. Animals that eat plants or other animals are consumers. Predators are animals that hunt and eat other animals, while prey are animals that are hunted and eaten. Energy flows through the food chain as each organism eats another to gain energy, keeping the ecosystem alive.
Food Chains And Food Webs
Food chains and food webs describe how energy moves through an ecosystem. A food chain represents a single path of energy transfer between organisms, such as from berries to rabbits to foxes. A food web shows multiple interconnected food chains and demonstrates that most organisms obtain energy from many different sources. Producers, like plants, capture energy from the sun to start the process, while consumers obtain energy by eating other organisms, and decomposers break down waste to recycle nutrients and energy back into the system.
Food chain
This document provides information about food chains. It begins by defining a food chain as a sequence of organisms through which energy flows as each organism obtains energy from the one below it in the chain. Producers, such as plants, are at the bottom of the food chain as they can produce their own food. Herbivores, as primary consumers, eat the producers. Carnivores eat herbivores or other carnivores. Omnivores both eat plants and other animals. Decomposers, like fungi and bacteria, break down waste and dead organisms, recycling nutrients in the ecosystem. The document includes examples of food chains and defines the roles of producers, consumers, and decomposers. It also
Food Chains & Webs
The document discusses food chains and trophic levels within ecosystems. It defines producers as autotrophs that create their own food through photosynthesis, such as grass. Primary consumers or herbivores, such as rabbits, eat the producers. Secondary consumers or carnivores, like hawks, consume the primary consumers. Decomposers such as bacteria break down dead organisms and cycle nutrients in the ecosystem. Most food chains interact forming complex food webs.
Food chain
A food chain shows how organisms are related through the transfer of energy from one organism to another as each consumes the next. Food chains were first introduced in the 9th century and later popularized in a 1927 book. A food chain involves producers, consumers, and decomposers, with energy transferring unidirectionally. Typically, 80-90% of energy is lost at each transfer between trophic levels, though omnivores can occupy multiple levels. The document provides several examples of food chains within an ecosystem.
Science 7 notes glb lab 04b food chains and food webs
The document discusses food chains and webs. It defines key terms like producer, consumer, decomposer and explains how energy transfers through a food chain from producers to primary consumers to secondary consumers and then decomposers. It also explains that multiple interconnected food chains make up a food web and discusses how removing a link in a chain or web can impact populations.
Differences between food chains & food webs in ecosystem
This document compares food webs and food chains. It explains that a food chain shows a single, linear pathway of organisms eating one another, starting with a producer like grass and ending with a top predator like a hawk. A food web is more complex, showing multiple possible feeding relationships and pathways through an ecosystem. It provides the example of a hawk that may prey on mice, squirrels or frogs, rather than just the single organism depicted in a food chain.
food webs & food chains
This document discusses food webs and food chains. It defines a food chain as showing how each living thing gets its food, with some animals eating plants and others eating other animals. A food web is described as showing all the possible feeding relationships between organisms in an ecosystem, and is made up of several interconnected food chains. The document outlines the key components of a food chain as producers, consumers, and decomposers. Producers like plants get energy from the sun, consumers obtain food by hunting/gathering as they cannot produce their own, and decomposers and scavengers break down dead organisms.
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This document discusses food chains and food webs. It will teach how to classify animals based on what they eat, how to construct food chains and food webs for different habitats, and how to identify producers and consumers. It defines producers as plants that get energy from the sun, herbivores as animals that eat plants, carnivores as animals that eat other animals, and omnivores as animals that eat both plants and other animals. An example food chain of cow eating grass and then being eaten by a tiger is given. A food web connects multiple overlapping food chains in an ecosystem like an oil palm plantation.
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Producers like plants are autotrophs that can produce their own food. There are three types of consumers - herbivores that eat plants, carnivores that eat meat, and omnivores that eat both plants and meat. Decomposers break down dead materials and waste to recycle nutrients back into the environment for producers. Together these organisms are linked in a feeding order of producers, consumers, and decomposers.
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A food chain shows how organisms obtain energy and nutrients by consuming other organisms. Food chains begin with autotrophs, like plants, that produce their own food. Herbivores then eat the plants, and carnivores eat the herbivores or other carnivores. This continues with increasing trophic levels until reaching top predators with no natural predators. At each level some energy is lost, with decreasing amounts of energy being passed to higher levels.
Ecosystems
The document discusses key concepts relating to ecosystems, including the interactions between living and non-living components. It defines ecosystems as local communities that directly interact and exhibit interdependent relationships, compared to biomes which describe larger global communities. The document also outlines the flow of energy through ecosystems, including producers, consumers, and decomposers, and explains food chains, food webs, and the inefficiency of energy transfer between trophic levels.
Trophic levels energy and pyramids
This document discusses trophic levels in food chains and energy transfer through ecosystems. It defines trophic levels as the position organisms occupy in a food chain based on what they consume for energy. Food chains show the transfer of energy from producers like plants at the first trophic level to primary, secondary, and tertiary consumers at higher levels. Food webs represent multiple interconnected food chains and alternative pathways for energy transfer. There is a 90% loss of energy between each trophic level, demonstrating that less energy is available at higher levels. This energy transfer can be represented by an ecological pyramid that shows decreasing numbers of organisms and available energy as one moves up trophic levels in an ecosystem.
THE FOOD CHAIN
The document discusses the food chain and its key components. It explains that the food chain is the transfer of food energy from producers, like plants that produce their own food, to consumers, including herbivores, carnivores and omnivores. Decomposers then break down the organic remains. Examples of terrestrial and aquatic food chains are provided, showing how energy passes between grass, grasshoppers, frogs, snakes and hawks in a land chain, and between algae, shrimp, fish and sharks in a water chain.
Food chains and webs powerpoint
The document discusses food chains and food webs within an ecosystem. It defines key terms like producers, consumers, herbivores, carnivores, omnivores, and decomposers. It explains that producers like plants make their own food, while consumers eat other organisms. Decomposers break down dead plants and animals, recycling nutrients. A food chain diagrams a single path of energy transfer, while a food web shows interconnected chains. Energy is lost at each trophic level, as shown in an energy pyramid.
Malpass_dissertationabstract
This research examines how anthropogenic resources in suburban areas affect bird populations and their interactions with nest predators. Through observational and experimental studies from 2011-2014 in Columbus, Ohio, the researcher investigated:
1) Demographic differences and nest survival rates of American robins and northern cardinals in residential yards versus forest parks, finding domestic cats posed a greater threat to cardinals in yards.
2) Relationships between woody vegetation cover and nest predator activity, finding no strong connection between the two.
3) Effects of bird feeders on predator activity and nest survival, with feeders associated with higher predator activity but complex impacts on survival depending on predator species.
4) Ability of nest
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The document discusses food chains and how energy passes from producers to consumers. It explains that plants get energy from photosynthesis, and are eaten by herbivores as primary consumers. Carnivores that eat herbivores are secondary consumers, and carnivores that eat other carnivores are tertiary consumers. Omnivores eat both plants and animals. Decomposers break down dead matter and release nutrients back into the food chain. The document provides examples of food chains and online resources for students to learn more.
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This document defines key terms related to ecosystems, including producers, consumers, decomposers, food chains, and food webs. It provides examples of each trophic level and discusses how energy flows through ecosystems. Producers, like plants, capture energy from the sun that is then consumed by primary, secondary, and tertiary consumers. Decomposers, such as bacteria and fungi, break down dead organisms and waste. While nutrients cycle through the ecosystem, most energy is lost as heat at each trophic level, with only 10-15% transferred to the next level.
Energy flow
The document discusses energy flow through ecosystems. It makes three key points:
1) The largest source of energy for ecosystems is the sun. Plants absorb sunlight through photosynthesis which begins the process of energy transfer.
2) Energy and nutrients are passed between organisms as one eats another, forming food chains and webs. Typically only about 10% of energy is transferred between trophic levels, with the rest lost as heat.
3) Population sizes decrease at higher trophic levels due to inefficiencies in energy transfer between levels. Producers at the bottom have the largest populations since they directly absorb solar energy.
Queency powerpoint
1) Food chains describe the transfer of energy from producers to consumers in an ecosystem. Producers such as plants get energy from the sun which is then consumed by primary, secondary, and tertiary consumers.
2) Organisms obtain food through predation, symbiosis, and mutualism. In predation, one organism hunts another for food. Symbiosis describes living together, including parasitism where one benefits at the expense of the other, commensalism where one benefits without affecting the other, and mutualism where both benefit.
3) Disruptions to the food chain, such as the loss of a population like frogs in a pond, can negatively impact other populations that depend on
Food Chain & Food Web
Food chains follow a single path of energy as organisms eat each other, starting with producers like grass and ending with top predators such as hawks. Food webs show how multiple interconnected food chains link all plants and animals in an ecosystem, allowing energy to flow through different pathways and helping everything survive. While food chains only follow one route, food webs connect several chains so that organisms like hawks may eat various prey and snakes can consume beetles, mice, or other animals.
BIOLOGY SBA (LAB)
This document summarizes two biology lab reports by a student. The first lab involved classifying 10 organisms found around the student's school into their scientific kingdoms, phyla, and classes. The second lab investigated interdependence between organisms by constructing food chains and a food web of 10 organisms and their food sources. Key findings were that organisms can be classified into taxonomic groups and that living things rely on each other through predator-prey relationships and the transfer of energy up the food chain from producers to consumers.
Biogeography- food chain and foo web
This document discusses food chains and food webs. It begins by defining a food chain as a sequence of organisms where each uses the next lower member as a food source. Food chains were first introduced in the 9th century and later popularized in a 1927 book. A food chain shows how energy passes from producers like plants through herbivores and then carnivores. Many interconnected food chains make up a food web. A food web representation shows all possible feeding relationships in an ecosystem. Whether a food chain or food web, the survival of plants and animals depends on their interdependence with each other.
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This document provides information about food chains. It begins by defining a food chain as a sequence of organisms through which energy flows as each organism obtains energy from the one below it in the chain. Producers, such as plants, are at the bottom of the food chain as they can produce their own food. Herbivores, as primary consumers, eat the producers. Carnivores eat herbivores or other carnivores. Omnivores both eat plants and other animals. Decomposers, like fungi and bacteria, break down waste and dead organisms, recycling nutrients in the ecosystem. The document includes examples of food chains and defines the roles of producers, consumers, and decomposers. It also
Food Chains & Webs
The document discusses food chains and trophic levels within ecosystems. It defines producers as autotrophs that create their own food through photosynthesis, such as grass. Primary consumers or herbivores, such as rabbits, eat the producers. Secondary consumers or carnivores, like hawks, consume the primary consumers. Decomposers such as bacteria break down dead organisms and cycle nutrients in the ecosystem. Most food chains interact forming complex food webs.
Food chain
A food chain shows how organisms are related through the transfer of energy from one organism to another as each consumes the next. Food chains were first introduced in the 9th century and later popularized in a 1927 book. A food chain involves producers, consumers, and decomposers, with energy transferring unidirectionally. Typically, 80-90% of energy is lost at each transfer between trophic levels, though omnivores can occupy multiple levels. The document provides several examples of food chains within an ecosystem.
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Differences between food chains & food webs in ecosystem
This document compares food webs and food chains. It explains that a food chain shows a single, linear pathway of organisms eating one another, starting with a producer like grass and ending with a top predator like a hawk. A food web is more complex, showing multiple possible feeding relationships and pathways through an ecosystem. It provides the example of a hawk that may prey on mice, squirrels or frogs, rather than just the single organism depicted in a food chain.
food webs & food chains
This document discusses food webs and food chains. It defines a food chain as showing how each living thing gets its food, with some animals eating plants and others eating other animals. A food web is described as showing all the possible feeding relationships between organisms in an ecosystem, and is made up of several interconnected food chains. The document outlines the key components of a food chain as producers, consumers, and decomposers. Producers like plants get energy from the sun, consumers obtain food by hunting/gathering as they cannot produce their own, and decomposers and scavengers break down dead organisms.
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This document discusses food chains and food webs. It will teach how to classify animals based on what they eat, how to construct food chains and food webs for different habitats, and how to identify producers and consumers. It defines producers as plants that get energy from the sun, herbivores as animals that eat plants, carnivores as animals that eat other animals, and omnivores as animals that eat both plants and other animals. An example food chain of cow eating grass and then being eaten by a tiger is given. A food web connects multiple overlapping food chains in an ecosystem like an oil palm plantation.
the food web and food chain
Producers like plants are autotrophs that can produce their own food. There are three types of consumers - herbivores that eat plants, carnivores that eat meat, and omnivores that eat both plants and meat. Decomposers break down dead materials and waste to recycle nutrients back into the environment for producers. Together these organisms are linked in a feeding order of producers, consumers, and decomposers.
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This document summarizes marine food chains and webs. It defines a food chain as the linear path of energy transfer between organisms, with producers, consumers, and decomposers. Food webs are more complex diagrams showing all feeding relationships. Phytoplankton are primary producers that are eaten by copepods, which are eaten by herring. Ocean food webs vary in efficiency, trophic levels, and primary productivity. Primary productivity is due to photosynthesis, while secondary productivity is from consumer organisms.
Food chain group 3-9 f
A food chain shows how organisms obtain energy and nutrients by consuming other organisms. Food chains begin with autotrophs, like plants, that produce their own food. Herbivores then eat the plants, and carnivores eat the herbivores or other carnivores. This continues with increasing trophic levels until reaching top predators with no natural predators. At each level some energy is lost, with decreasing amounts of energy being passed to higher levels.
Ecosystems
The document discusses key concepts relating to ecosystems, including the interactions between living and non-living components. It defines ecosystems as local communities that directly interact and exhibit interdependent relationships, compared to biomes which describe larger global communities. The document also outlines the flow of energy through ecosystems, including producers, consumers, and decomposers, and explains food chains, food webs, and the inefficiency of energy transfer between trophic levels.
Trophic levels energy and pyramids
This document discusses trophic levels in food chains and energy transfer through ecosystems. It defines trophic levels as the position organisms occupy in a food chain based on what they consume for energy. Food chains show the transfer of energy from producers like plants at the first trophic level to primary, secondary, and tertiary consumers at higher levels. Food webs represent multiple interconnected food chains and alternative pathways for energy transfer. There is a 90% loss of energy between each trophic level, demonstrating that less energy is available at higher levels. This energy transfer can be represented by an ecological pyramid that shows decreasing numbers of organisms and available energy as one moves up trophic levels in an ecosystem.
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The document discusses the food chain and its key components. It explains that the food chain is the transfer of food energy from producers, like plants that produce their own food, to consumers, including herbivores, carnivores and omnivores. Decomposers then break down the organic remains. Examples of terrestrial and aquatic food chains are provided, showing how energy passes between grass, grasshoppers, frogs, snakes and hawks in a land chain, and between algae, shrimp, fish and sharks in a water chain.
Food chains and webs powerpoint
The document discusses food chains and food webs within an ecosystem. It defines key terms like producers, consumers, herbivores, carnivores, omnivores, and decomposers. It explains that producers like plants make their own food, while consumers eat other organisms. Decomposers break down dead plants and animals, recycling nutrients. A food chain diagrams a single path of energy transfer, while a food web shows interconnected chains. Energy is lost at each trophic level, as shown in an energy pyramid.
Malpass_dissertationabstract
This research examines how anthropogenic resources in suburban areas affect bird populations and their interactions with nest predators. Through observational and experimental studies from 2011-2014 in Columbus, Ohio, the researcher investigated:
1) Demographic differences and nest survival rates of American robins and northern cardinals in residential yards versus forest parks, finding domestic cats posed a greater threat to cardinals in yards.
2) Relationships between woody vegetation cover and nest predator activity, finding no strong connection between the two.
3) Effects of bird feeders on predator activity and nest survival, with feeders associated with higher predator activity but complex impacts on survival depending on predator species.
4) Ability of nest
Rachellefabionar.powerpoint.foodchains
The document discusses food chains and how energy passes from producers to consumers. It explains that plants get energy from photosynthesis, and are eaten by herbivores as primary consumers. Carnivores that eat herbivores are secondary consumers, and carnivores that eat other carnivores are tertiary consumers. Omnivores eat both plants and animals. Decomposers break down dead matter and release nutrients back into the food chain. The document provides examples of food chains and online resources for students to learn more.
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This document defines key terms related to ecosystems, including producers, consumers, decomposers, food chains, and food webs. It provides examples of each trophic level and discusses how energy flows through ecosystems. Producers, like plants, capture energy from the sun that is then consumed by primary, secondary, and tertiary consumers. Decomposers, such as bacteria and fungi, break down dead organisms and waste. While nutrients cycle through the ecosystem, most energy is lost as heat at each trophic level, with only 10-15% transferred to the next level.
Energy flow
The document discusses energy flow through ecosystems. It makes three key points:
1) The largest source of energy for ecosystems is the sun. Plants absorb sunlight through photosynthesis which begins the process of energy transfer.
2) Energy and nutrients are passed between organisms as one eats another, forming food chains and webs. Typically only about 10% of energy is transferred between trophic levels, with the rest lost as heat.
3) Population sizes decrease at higher trophic levels due to inefficiencies in energy transfer between levels. Producers at the bottom have the largest populations since they directly absorb solar energy.
Queency powerpoint
1) Food chains describe the transfer of energy from producers to consumers in an ecosystem. Producers such as plants get energy from the sun which is then consumed by primary, secondary, and tertiary consumers.
2) Organisms obtain food through predation, symbiosis, and mutualism. In predation, one organism hunts another for food. Symbiosis describes living together, including parasitism where one benefits at the expense of the other, commensalism where one benefits without affecting the other, and mutualism where both benefit.
3) Disruptions to the food chain, such as the loss of a population like frogs in a pond, can negatively impact other populations that depend on
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Science 7 notes glb lab 04b food chains and food webs
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Similar to FOOD CHAIN & FOOD WEB ppt.
Food Chain & Food Web
Food chains follow a single path of energy as organisms eat each other, starting with producers like grass and ending with top predators such as hawks. Food webs show how multiple interconnected food chains link all plants and animals in an ecosystem, allowing energy to flow through different pathways and helping everything survive. While food chains only follow one route, food webs connect several chains so that organisms like hawks may eat various prey and snakes can consume beetles, mice, or other animals.
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This document summarizes two biology lab reports by a student. The first lab involved classifying 10 organisms found around the student's school into their scientific kingdoms, phyla, and classes. The second lab investigated interdependence between organisms by constructing food chains and a food web of 10 organisms and their food sources. Key findings were that organisms can be classified into taxonomic groups and that living things rely on each other through predator-prey relationships and the transfer of energy up the food chain from producers to consumers.
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This document discusses food chains and food webs. It begins by defining a food chain as a sequence of organisms where each uses the next lower member as a food source. Food chains were first introduced in the 9th century and later popularized in a 1927 book. A food chain shows how energy passes from producers like plants through herbivores and then carnivores. Many interconnected food chains make up a food web. A food web representation shows all possible feeding relationships in an ecosystem. Whether a food chain or food web, the survival of plants and animals depends on their interdependence with each other.
Feeding
The document discusses feeding relationships and food chains. It explains that all food chains start with energy from the sun which is transferred to plants through photosynthesis. Plants are called producers. Primary consumers, like rabbits and aphids, eat the plants and pass the energy to secondary consumers like foxes and ladybirds that prey on the primary consumers. A food web shows the complex interconnected feeding relationships between different species in an ecosystem. When a species is removed, it impacts the populations of the other connected species in the food web.
B) How It Works
1. Producers such as plants use photosynthesis to produce their own food from sunlight, acting as the base of the food chain. Consumers obtain food by eating other organisms and can be herbivores, carnivores, or omnivores.
2. Energy passes from producers to primary consumers like herbivores and then to secondary consumers such as carnivores in a food chain. Multiple interconnected food chains make up a complex food web in an ecosystem.
3. As energy passes up the food chain, much of it is lost at each transfer between organisms and is used for functions like movement, growth, and heat rather than being fully passed to the next organism. This limits how many organisms can
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This document discusses energy flow and food chains in ecosystems. It explains that producers like plants get energy from sunlight to make food, while consumers eat other organisms or producers for energy. Decomposers break down dead organisms and waste, releasing energy back into the ecosystem. Food chains show how energy passes from producers to consumers. Multiple overlapping food chains combine to form complex food webs, where a change in one part can impact other parts of the ecosystem. The document gives an example of how reducing the habitat for prairie dogs due to human settlement can negatively affect other species in the food web like black-footed ferrets and badgers by decreasing their food sources.
Food chain
A food chain shows how organisms are related through the transfer of energy from one organism to another as each consumes the next. Food chains were first introduced in the 9th century and later popularized in a 1927 book. A food chain involves producers, consumers, and decomposers, with energy transferring unidirectionally. Typically, 80-90% of energy is lost at each transfer between trophic levels, though omnivores can occupy multiple levels. The document provides several examples of food chains within an ecosystem.
FOOD CHAIN
A food chain is a linear sequence showing how organisms are related through the transfer of energy from one organism to another as they eat and are eaten. Food chains were first introduced in the 9th century and later popularized in a 1927 book. They involve repeated eating with each group eating smaller ones and being eaten by larger ones, transferring energy unidirectionally from producers to consumers in trophic levels, with about 80-90% of energy lost at each transfer. Food chains in an ecosystem were provided as examples.
Food chain
A food chain shows how organisms are related through the transfer of energy as each organism eats another for sustenance. Food chains were first described by the scientist Al-Jahiz in the 9th century and later popularized by Charles Elton, who also introduced the concept of a food web. A food chain involves producers like plants being eaten by consumers in a linear progression, with energy being lost at each transfer between trophic levels, usually totaling a 90% loss by the top of the 4-5 level chain. Examples of food chains in an ecosystem are provided.
4.food_chains_and_food_webs ste 7.pptx
Here are 3 potential impacts if grasshoppers disappeared from the area:
1. The vole population would decrease. Without grasshoppers as a food source, voles would have less available food and their population would decline over time.
2. The frog and snake populations would decrease. With fewer voles due to the lack of grasshoppers, the frog and snake populations that rely on voles as a food source would have reduced availability of prey. Their numbers would fall as a result.
3. Other animals higher up in the food chain like hawks and owls would be indirectly impacted. With declining frog and snake populations due to fewer voles, these top predators would have reduced populations of smaller animals to prey
Biosphere
Earth has four main interacting systems: the atmosphere, hydrosphere, biosphere, and geosphere. The biosphere contains all living things and is dependent on abiotic and biotic factors. Energy from the sun moves through food chains and webs as organisms consume other organisms or plants. Herbivores eat plants, carnivores eat herbivores or other carnivores, and omnivores eat both plants and animals. Decomposers break down waste and cycle nutrients through the biosphere.
Earth Science. Biosphere ppt
The document discusses the four main systems that make up Earth: the atmosphere, hydrosphere, biosphere, and geosphere. It focuses on explaining the biosphere and related concepts like ecology, biotic and abiotic factors, food chains, and food webs. The biosphere is made up of all living things that interact with each other and non-living things. Energy from the sun is passed between organisms through food, starting with producers and moving up through herbivores, carnivores, and decomposers. Food chains connect to form more complex food webs in ecosystems.
ecosystem and composition of the earth.ppt
The document discusses the four main systems that make up Earth: the atmosphere, hydrosphere, biosphere, and geosphere. It describes the biosphere as encompassing the hydrosphere, upper geosphere, and lower atmosphere, and as the area where living things interact with non-living things. The biosphere contains biotic factors like plants and animals, as well as abiotic factors like weather. Food chains and webs show how energy passes between organisms in an ecosystem, with more organisms at lower trophic levels due to energy loss at each transfer.
Food Chains and Food Webs Handout.pdf for grade 6 and 7
1. Food chains and food webs show how energy flows through an ecosystem. A food chain traces energy between organisms as they eat each other, while a food web shows how multiple food chains interconnect.
2. A food chain has producers, consumers, and decomposers. Producers like plants get energy from the sun. Consumers like herbivores eat plants, and carnivores eat other animals. Decomposers break down dead organisms.
3. A food web is more complex than a food chain as it shows multiple organisms feeding on the same producers, and how top carnivores have different food sources.
Food chain
A food chain describes the transfer of energy from organism to organism in an ecosystem. Primary producers like plants trap solar energy through photosynthesis and are eaten by primary consumers like herbivores. These primary consumers are then eaten by secondary consumers such as carnivores or omnivores. Tertiary consumers may also exist and consume secondary consumers. Food chains interconnect to form complex food webs as most organisms have more than one food source. Energy from the sun is passed from producers to consumers in a food chain.
Owl Pellet Dissection Lesson Plan
Owl pellet is used for educational purposes. When you dissect the pellet, you will find skeletons of mice, voles, birds and more. This is not just fascinating but also helps the kids to gain knowledge about the bird’s eating habits.
Wouldn’t you want to introduce your kids/students to something that would help them learn about the nature of the food chain and ecosystem?
Reference: https://www.educationalscience.com/owl-pellets-kits
Ecology lesson.ppt
The document discusses key concepts in ecology, including producers, consumers, trophic levels, and ecological interactions. It defines ecology as the scientific study of interactions between organisms and their environment. Producers, like plants, capture energy from the sun through photosynthesis. Consumers rely on producers or other consumers for food and include herbivores, carnivores, omnivores, and decomposers. Food chains and webs show the transfer of energy between trophic levels in an ecosystem. Ecological pyramids illustrate the decrease in biomass and energy at higher trophic levels due to only 10% of energy being transferred between levels. Ecological niches describe an organism's role and interactions within its habitat
5. Environmental Biology
The document defines key terms related to ecosystems, including habitats, populations, communities, species, and ecosystems. It discusses food chains and webs, explaining producers, consumers, and energy transfer. It also covers adaptations, biodiversity, behavioral adaptations in animals, and competition within ecosystems.
Diversity for sustenance 1
This document summarizes key concepts relating to diversity and sustainability within ecosystems. It discusses the biosphere, biotic and abiotic factors, ecology, food chains and webs, trophic levels, and ecological interactions like predation, parasitism, competition, mutualism and commensalism. The biosphere is where all life exists, including organisms, soil, air and water. Ecology studies the interactions between organisms and their environment. Food chains demonstrate how energy passes between organisms as one eats another, while food webs illustrate the complex interconnections between multiple food chains in an ecosystem. Trophic levels represent an organism's position in a food chain. Various ecological interactions influence organisms like predation, where one benefits while harm
food chains and food webs
1) A food chain models the flow of energy from one living thing to the next as organisms consume each other. All food chains begin with producers, such as plants, that obtain energy from the sun.
2) If one organism in a food chain is removed, all other organisms in the chain are affected as the energy flow is disrupted.
3) Multiple interconnected food chains form a more complex food web. Like food chains, food webs also begin with energy from the sun and producers, and the removal of any organism can impact the entire web.
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FOOD CHAIN & FOOD WEB ppt.
- 1. ALL INDIA KHILAFAT S.Y.B.Ed Roll No.- 10
- 2. What is food chain? What is food web? Differences between Food Chain and Food Web Energy pyramid Evaluation.
- 3. A food chain only follow just one path as animals find food.
- 4. A food web shows the many different paths plants and animals are connected.
- 5. Food Chain:- The sun provides food for grass. The grass is eaten by grass hopper. The grass hopper is eaten by frog. The snake is eaten by hawk.
- 7. Trees produce acorns which act as food for many mice and insects. because there are many mice, weasels, and snakes have food. The insects and acorns also attract Birds, Skunks, and opossums. With the skunks, opossums, weasels, and mice around hawks, foxes and owls can find. They are all connected like a spider web, if one part is removed, it can affect the whole web.
- 9. Trophic level An energy pyramid is geographical model of energy flow in a community. The different levels represent different group of organism that might compose a food chain from the bottom up, they are as follows. Producers Primary consumers.
- 11. Q.- A food chain only follows just ______ Paths. a). One b). Two c). Three d). Four
- 12. a). One. b). Two. c). Different. d). Both (a) and (b).
- 13. a). Grass hopper. b). Frog c). Grass d). None of these
- 14. a). Trophic. b). Food web. c). Bothe (a) and (b) d). None of these
- 15. a). Saprophytes. b). Fishes. c). Both (a) and (b). d). None of these.