Staar Ecosystem

A park is home to a large number of robins, squirrels and rabbits. The robins and squirrels live in the park’s trees. The robins feed on earthworms and insects that live on the ground. The squirrels eat the acorns produced by the park’s oak trees. The rabbits hide in the bushes and feed on the grass. Which factor would negatively impact the number of rabbits living in the park?

• Collecting acorns off the ground.

• Planting more trees.

• Removing park bushes.

• Removing the squirrels.

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If humans cleared a forest to build homes, we would expect _____________.

• fewer tree-dwelling animals

• increased insect populations

• more development of soil

• more frequent thunderstorms

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The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.

• It shows how sunlight flows within an ecosystem.

• They show what direction the energy is flowing between organisms. 

• They represent how water is transferred within a habitat.

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Why might an organism have more than one arrow coming from them in a food web?

• More than one organism may eat them.

• They may eat more than one other organism.

• This organism gets its energy from multiple sources.

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The rabbit in this food web would be considered a:

• Decomposer

• Producer

• Secondary Consumer

• Primary Consumer

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The mouse in this food web would be considered a:

• Primary Consumer

• Producer

• Tertiary Consumer

• Secondary Consumer

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What is this called?

• Food Web

• Food Chain

• Abiotic Factors

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Which organism do the owl and the weasel compete for in the food web?

• Hawk

• Spider

• Grasshopper

• Shrew

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Organisms that make up the living part of an ecosystem.

• abiotic

• biotic factors

• ecology

• ecosystems

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What abiotic factors might you find in an ecosystem?

• Mammals, insects, and birds

• Plants, fungi, and lichen

• Rocks, air, light, and soil

• Bacteria and other microbes

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