Study Guide: How Do Matter and Energy Flow In An Ecosystem?

What is matter?

• Matter is anything that has mass and takes up space.

• Matter is a type of energy.

• Matter is a form of light.

• Matter is a concept in mathematics.

What are the two bonus trophic levels?

• Primary Producer and Primary Consumer

• Secondary Consumer and Tertiary Consumer

• Decomposer and Apex Predators

• Primary Producer and Decomposer

Explain if there is more energy or less energy moving from organism to organism in an ecosystem.

• There is more energy moving from organism to organism in an ecosystem.

• There is less energy moving from organism to organism in an ecosystem.

The estimated percentage of available energy that is passed between organisms in an ecosystem is:

• 10%

• 20%

• 30%

• 40%

The difference between a producer and a primary consumer is:

• Producers make their own food, while primary consumers eat producers.

• Producers eat primary consumers, while primary consumers make their own food.

• Producers and primary consumers both make their own food.

• Producers and primary consumers both eat other organisms.

The difference between a secondary and tertiary consumer is:

• Secondary consumers are carnivores (eat meat), while tertiary consumers are the second level consumers that eat meat eaters, like secondary consumers.

• Secondary consumers eat plants, while tertiary consumers eat animals.

• Secondary consumers are at the top of the food chain, while tertiary consumers are not.

• Secondary consumers and tertiary consumers eat the same type of food.

What is the difference between a food chain and a food web?

• A food CHAIN shows the link from one organism to the next while a food WEB is more complex. It shows how several food chains are connected within an ecosystem.

• A food chain is a complex network of many interconnected food chains and feeding relationships, while a food web is a linear sequence of organisms where nutrients and energy pass as one organism eats another.

• A food chain and a food web are the same, with no differences.

• A food chain is a diagram showing the flow of energy between organisms, while a food web is a list of organisms in an ecosystem.

How many “main” trophic levels are there? Name them all.

• Three: Producers, Consumers, Decomposers

• Four: Producers, Primary Consumers, Secondary Consumers, Tertiary Consumers

• Five: Producers, Herbivores, Carnivores, Omnivores, Decomposers

• Two: Autotrophs, Heterotrophs

Matter and energy flow in an ecosystem through different trophic levels. Which of the following best describes this flow?

• Matter and energy flow in a linear path from producers to consumers.

• Matter is recycled in the ecosystem, while energy flows in a linear path.

• Both matter and energy are recycled in the ecosystem.

• Energy is recycled in the ecosystem, while matter flows in a linear path.