Understanding Biomes and Ecosystems

What might be the result of removing a top predator from a marine biome?

• Fish become overpopulated.

• There is no effect on the biome.

• The ocean becomes more polluted.

• A prey animal becomes the top predator.

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How might the hydrosphere affect the biosphere?

• A river floods animal burrows.

• Soil from erosion fills up a pond.

• A thunderstorm causes a landslide.

• Plant roots break down large rocks.

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Which sphere contains all of Earth’s organisms?

• atmosphere

• biosphere

• geosphere

• hydrosphere

Study the food web. Which animal is a top predator in this ecosystem?

• deer

• hawk

• lizard

• snake

Why do humans remove top predators?

• Top predators drink all of the water.

• Top predators hunt humans’ livestock.

• Top predators are bad for ecosystems.

• Top predators take up too much space.

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How might the atmosphere affect the biosphere?

• A tsunami washes away a beach.

• An earthquake drains a large lake.

• A tornado knocks down many trees.

• An invasive species eats all of the plants.

Explain what might happen to this ecosystem if a bird was removed.

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OFF

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How do you impact your biome?

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OFF

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What is a biome?

• an area without life

• a region of the biosphere

• all of the organisms on Earth

• the border between two states

When did life first appear on Earth?

• 100,000 years ago

• 3.5 million years ago

• 1 billion years ago

• 4.5 billion years ago

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