TCI: Lesson 7- How Do Ecosystems Change?

What is an example of a change that takes place during succession?

• Species slowly replace each other as the landscape changes
• A wildfire destroys the homes and shelters of animals in a forest
• Natural disasters erase landscapes

Why do some animals hibernate during winter?

• They're really tired
• They can't find enough food
• They hate the winter weather

What happens to organisms that don't change with their ecosystems?

• They can disappear from the earth
• They leave the ecosystem
• They cry

When a forest fire happens, the plants that are new or not burned will ________ because the fire released nutrients into the soil.

• grow faster
• die out
• disappear

A natural change to an ecosystem occurs  when

• A drought causes plants to die
• Loggers cut down trees
• Humans litter in campsites