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WorksheetsExploring Ecosystems and Energy Flow
Total questions: 16
Worksheet time: 8mins
Which of the following best describes the role of producers in a food web?
They break down dead organisms.
They create energy from sunlight.
They consume other organisms for energy.
They store energy in the form of fat.
In an ecosystem, which of the following is an example of a consumer?
Grass
Rabbit
Sunlight
Water
How does energy flow through a food web?
From consumers to producers
From producers to consumers
From decomposers to producers
From the sun to decomposers
Which of the following statements about matter in an ecosystem is true?
Matter is created by producers.
Matter is destroyed by consumers.
Matter is recycled through the ecosystem.
Matter flows in one direction only.
What is the primary source of energy for most ecosystems?
The moon
The sun
The ocean
The wind
Which of the following organisms is most likely to be at the top of a food web?
Grass
Deer
Lion
Rabbit
What role do decomposers play in the food web?
They produce energy from sunlight.
They consume producers.
They break down dead organisms and recycle nutrients.
They store energy in the form of fat.
How do consumers obtain energy in an ecosystem?
By producing their own food
By consuming other organisms
By absorbing sunlight
By decomposing dead matter
Which of the following is a characteristic of a consumer?
They can make their own food.
They rely on other organisms for energy.
They decompose organic matter.
They are always at the bottom of the food web.
In a food web, what is the relationship between producers and consumers?
Producers eat consumers.
Consumers eat producers.
Producers and consumers are the same.
Producers decompose consumers.
What is the role of the sun in a food web?
It is a consumer.
It is a producer.
It is the primary source of energy.
It is a decomposer.
What is the main difference between a food chain and a food web?
A food chain is more complex than a food web.
A food web shows multiple paths of energy flow.
A food chain includes decomposers.
A food web is a linear sequence of organisms.
Which of the following best describes the role of decomposers in an ecosystem?
They produce energy from sunlight.
They consume producers.
They break down dead organisms and recycle nutrients.
They store energy in the form of fat.
What can energy always be traced back
to?
water
sun
food
air
Plants use _________________ and molecules from air to make food.
oxygen
water
carbon dioxide
atoms
Animals and plants use ____________ molecules to release energy.
water
air
food
dirt
