5th Grade Science : Movement of Matter
Study concepts, example questions & explanations for 5th Grade Science
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Example Questions
Example Question #31 : 5th Grade Science
What is a decomposer in the food chain?
A decomposer breaks down organic material
A decomposer is at the top of the food chain and is an apex predator
A decomposer is responsible for providing energy to tertiary consumers
A decomposer eats producers
A decomposer breaks down organic material
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.
Example Question #2 : Movement Of Matter
What is the role of a decomposer in an ecosystem?
Produce oxygen for consumers
Bring nutrients to producers and consumers
Break down dead organisms
To capture the energy of the Sun for plants to make food
Break down dead organisms
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.
Example Question #3 : Movement Of Matter
What would happen in a food chain if decomposers were removed?
Producers would not have enough nutrients, and waste would pile up.
Final consumers will have to start eating producers.
The Sun will direct its energy towards other organisms in the food chain.
Primary consumers will have nothing to eat and starve.
Producers would not have enough nutrients, and waste would pile up.
If decomposers were removed from a food chain, there would be a break down in the flow of matter and energy. Waste and dead organisms would pile up. Producers would not have enough nutrients because, within the waste and dead organisms, nutrients would not be released back into the ecosystem.
Example Question #4 : Movement Of Matter
How do decomposers assist producers in moving matter in the food chain?
Decomposers distract many of the primary consumers from threatening or eating the producers.
Decomposers do not help producers in any way; in fact, they are harmful to them.
Decomposers attract more sunlight which gives producers the energy they need to make food.
Decomposers recycle nutrients back into the soil so that they can be taken up by the roots of plants.
Decomposers recycle nutrients back into the soil so that they can be taken up by the roots of plants.
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.
Example Question #5 : Movement Of Matter
If Jessa is making a model of a food chain and needs to include decomposers, what type of organism could she use as an example?
Worm
Bacteria
Fungi
All of the choices are correct
All of the choices are correct
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.
Example Question #31 : 5th Grade Science
Organisms that feed on the remains or waste of other organisms are known as ___________.
producers
consumers
decomposers
predators
decomposers
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.
Example Question #32 : 5th Grade Science
Which organism below is an example of a decomposer?
Osprey
Plankton
Oak tree
Fungi
Fungi
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.
Example Question #32 : 5th Grade Science
Composting takes advantage of the natural process of decomposition by
returning energy and nutrients to the environment.
creating clean drinking water for humans, plants, and animals.
releasing harmful chemicals into the atmosphere.
decreasing the Earth's temperature.
returning energy and nutrients to the environment.
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.
Example Question #41 : 5th Grade Science
In the graphic below, a food chain is modeled. The decomposer has been removed from the food chain. Which organism below could be the decomposer in this 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.
Example Question #1 : Movement Of Matter
Which of the following is an example of a 1) decomposer, 2) producer, and 3) a consumer?
1) fungi, 2) grass, and 3) cricket
1) mushroom, 2) rose bush, and 3) palm tree
1) grass, 2) cricket, and 3) vulture
1) osprey, 2) snake, and 3) frog
1) fungi, 2) grass, and 3) cricket
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".
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