Movement of Matter - 5th Grade Science

A decomposer is an organism that feeds on and breaks down dead plant or animal matter, making organic nutrients available to the ecosystem. Often a decomposer is a bacterium, fungus, or invertebrate. Decomposers play a critical role in the flow of energy through an ecosystem. Decomposers make vital nutrients available to an ecosystem’s primary producers—usually plants and algae. A worm, bacterium, or fungi would all be acceptable examples of a decomposer.

Decomposers play a vital role in keeping the food chain functioning properly. As decomposers break down the remains of dead organisms and produce waste, nutrients are recycled back into the soil for producers (plants) to absorb through their roots. Without decomposers, there would be a buildup of debris, remained, and a lack of nutrients in the food chain.

A decomposer is an organism that feeds on and breaks down dead plant or animal matter, making organic nutrients available to the ecosystem. Often a decomposer is a bacterium, fungus, or invertebrate. Decomposers play a critical role in the flow of energy through an ecosystem. Decomposers make vital nutrients available to an ecosystem’s primary producers—usually plants and algae.

Fungi is a decomposer. Decomposers play a vital role in keeping the food chain functioning properly. As decomposers break down the remains of dead organisms and produce waste, nutrients are recycled back into the soil for producers (plants) to absorb through their roots. Without decomposers, there would be a buildup of debris, remained, and a lack of nutrients in the food chain.

Animals that hunt and eat other animals are called carnivores. This means they eat only meat. Animals like wolves, tigers, and cheetahs are examples of carnivores. They have specially adapted features to allow them to excel at hunting and eating meat. Strong talons, sharp beaks, sharp teeth, powerful jaw, and night vision are just a few adaptations. They still receive energy from the Sun and producers as they consume other animals in the food chain, but they do not directly eat the producers.

All consumers, producers, and decomposers are biotic. This means that they are all living, biological organisms. Biotic factors in an ecosystem or food chain can describe either the consumer or the producer. Decomposers are also living things and fall into the category of biotic.

Omnivores are organisms that eat both plant and animal products. Humans are an example of an omnivore because we eat meat like beef, pork, fish, and chicken and eat fruits and vegetables, which are plants or plant by-products. A carnivore only eats animal products (like a cheetah), and herbivores only eat plants and plant by-products (like a rabbit).

A decomposer is an organism that breaks down organic material. This includes the remains of dead organisms. Bacteria, worms, snails, slugs, and fungi are types of decomposers. All organisms undergo decomposition after death.

Plants (producers) are at the beginning of every food chain that involves the Sun. All energy comes from the Sun, and plants are the ones who make food with that energy through photosynthesis. Plants get their energy from the Sun and water. Without water transporting nutrients to the plants, they would not grow and survive. Water also helps cool plants as they evaporate water through transpiration.

A decomposer is an organism that feeds on and breaks down dead plant or animal matter, making organic nutrients available to the ecosystem. Often a decomposer is a bacterium, fungus, or invertebrate. Decomposers play a critical role in the flow of energy through an ecosystem. Decomposers make vital nutrients available to an ecosystem’s primary producers—usually plants and algae.

Plants are called producers and are a vital part of the food chain. This food chain is based in the ocean and features all aquatic organisms. Plants get their energy from the Sun and water. Without water transporting nutrients to the plants, they would not grow and survive.

Composting is a form of decomposition and takes advantage of the natural bacteria, fungi, and organisms that break down waste. Many people will collect kitchen scraps and debris, let the organic matter break down, and then spread it in gardens or potted plants because it is rich in nutrients. Decomposers play a vital role in keeping the food chain functioning properly. As decomposers break down the remains of dead organisms and produce waste, nutrients are recycled back into the soil for producers (plants) to absorb through their roots. Without decomposers, a buildup of debris remained and a lack of nutrients in the food chain.

The vulture is a decomposer that could be added to this food chain to complete it. A decomposer is an organism that feeds on and breaks down dead plant or animal matter, making organic nutrients available to the ecosystem. Often a decomposer is a bacterium, fungus, or invertebrate. Decomposers play a critical role in the flow of energy through an ecosystem. Decomposers make vital nutrients available to an ecosystem’s primary producers—usually plants and algae.

A decomposer is an organism that breaks down organic material. This includes the remains of dead organisms. Bacteria, worms, snails, slugs, and fungi are types of decomposers. All organisms undergo decomposition after death. The correct answer is "1) fungi, 2) grass, and 3) cricket".

The Department of Education and Training for Victoria State in Canada explains in scientific terms how energy is transformed and transferred through the food chain in a very clear way, "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. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants. The majority of the chemical energy stored in plants is transformed into other forms by an assortment of consumers, such as cows, rabbits, horses, sheep, caterpillars, and other insects eating plants. Some of the stored chemical energy in a producer such as grass is stored as chemical energy in the fat or protein in the first-order consumers that eat the grass. This energy is available for higher-order consumers. At each stage of a food chain, most of the chemical energy is converted to other forms such as heat and does not remain within the ecosystem."

Source: https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/ecosystem.aspx#:~:text=Energy%20is%20transferred%20between%20organisms,process%20of%20photosynthesis%20in%20plants.

The Department of Education and Training for Victoria State in Canada explains in scientific terms how energy is transferred through the food chain in an ecosystem, "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. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants. The majority of the chemical energy stored in plants is transformed into other forms by an assortment of consumers, such as cows, rabbits, horses, sheep, caterpillars, and other insects eating plants. Some of the stored chemical energy in a producer such as grass is stored as chemical energy in the fat or protein in the first-order consumers that eat the grass. This energy is available for higher-order consumers. At each stage of a food chain, most of the chemical energy is converted to other forms such as heat and does not remain within the ecosystem."

Energy is recycled in a food chain and flows between producers, consumers, and decomposers. There is no accumulation of energy; a final consumer does not end up with all the energy; it is recycled and transferred through prey/predator relationships.

Source: https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/ecosystem.aspx#:~:text=Energy%20is%20transferred%20between%20organisms,process%20of%20photosynthesis%20in%20plants.

The Department of Education and Training for Victoria State in Canada explains in scientific terms how energy is transferred through an ecosystem, "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. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants. The majority of the chemical energy stored in plants is transformed into other forms by an assortment of consumers, such as cows, rabbits, horses, sheep, caterpillars, and other insects eating plants. Some of the stored chemical energy in a producer such as grass is stored as chemical energy in the fat or protein in the first-order consumers that eat the grass. This energy is available for higher-order consumers. At each stage of a food chain, most of the chemical energy is converted to other forms such as heat and does not remain within the ecosystem."

An example of a food chain is presented in the graphic below. It starts with the Sun providing the energy needed for the producer's photosynthesis. The plant is eaten by an herbivore, which is consumed by a carnivore (and there may be a few carnivores in the chain), and finally, the waste and remains for dead organisms are broken down by decomposers to be put back into the ecosystem.

Source: https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/ecosystem.aspx#:~:text=Energy%20is%20transferred%20between%20organisms,process%20of%20photosynthesis%20in%20plants.

The Department of Education and Training for Victoria State in Canada explains in scientific terms how energy is transferred through the food chain when all the necessary organisms are present, "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. A small proportion of this chemical energy is transformed directly into heat when compounds are broken down during respiration in plants." Plants (producers) rely on sunlight to carry out photosynthesis. Though herbivores and carnivores do not get their energy directly from the Sun, they still rely on the plants (producers) who do and that energy is passed through the food chain.

Source: https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/science/continuum/Pages/ecosystem.aspx#:~:text=Energy%20is%20transferred%20between%20organisms,process%20of%20photosynthesis%20in%20plants.

Each arrow represents the direction energy is flowing. Energy moves to the mushrooms because they are decomposers, and they break down the remains of dead organisms. They distribute waste and nutrients back into the food chain through soil absorption.