8th Science House Party

Observe the food chain above. Which organism’s population would increase if finches were removed from the ecosystem? *Choose 1

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The shortgrass prairie is an ecosystem found in the Great Plains. Many different populations of animals depend on the prairie ecosystem for survival. A typical community includes animals such as snakes, birds, mice, rodents, and insects.

Which food chain most accurately demonstrates the flow of energy in a shortgrass prairie ecosystem shown above?

• Grasshopper → bird → rodent → buffalo

• Hawk → snake → mouse → grasshopper

• Grasshopper → mouse → snake → hawk

• Snake → hawk → skunk → mouse

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The Sun provides energy to the plants. Some animals eat plants to survive. Other animals, like frogs, eat insects and other animals. What would most likely happen if the frog were removed from the ecosystem? The insect population would​ (a)   ​

• Increase
• Decrease

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A forest fire can be harmful to animals, but some animals survive. Birds can fly to safety, and most mammals can run from fire. Frogs are safe if they can get to water. Some small animals hide in burrows underground. What is a way that describes how an animal is most likely to survive a forest fire?

• Squirrels hide in ponds or streams.

• Bears burrow underground.

• Woodpeckers hide under rocks or in logs.

• Deer can run to a safe area.

Label the Producer, Consumer, and Source of energy

a

b

c

Consumer

Producer

Source of Energy

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An ecosystem is affected by flooding. Some organisms, such as rabbits, can survive by moving to higher ground. Which organisms in the area are likely to perish in the flood?

• Owls, because they are not strong swimmers

• Grasses, because their roots will rot in wet soil

• Bees, because they are too small to survive in water

• Deer, because they are land animals

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Heavy rains flooded the area in the picture above. How might the floods affect the organisms that live there?

• More water will cause animals to grow faster.

• All of the organisms will perish in the wet conditions.

• The flood will not affect the organisms that live in the area.

• Some organisms will leave the area to find a dry environment.

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Look at the ecosystem pictured. The animals and plants in this ecosystem are a(n)​ (a)   interacting in the same area

• community
• population
• ecosystem

In the food chain below, from where does the energy originate?

Select the correct answer.

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Below are some examples of organisms you would find in a forest ecosystem. Match the organism to its role in the food chain.

Move the answers to the correct boxes. Match the following

• lion

• decomposer

• grass

• producer

• earthworm

• carnivore

• deer

• consumer

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