Ecosystem 3rd

What is an ecosystem composed of?

• Both living and non-living things

• Only non-living things

• Only living things

• Only animals

Which of the following is NOT a type of ecosystem?

• City

• Forest

• Ocean

• Desert

What does a food chain demonstrate?

• None of the above

• Types of plants in an ecosystem

• Energy transfer between organisms

• The cycling of water

Why are ecosystems important for humans?

• They are not important

• They provide resources like food and medicine

• They offer places for sports

• They provide entertainment

What happens if a keystone species is removed from its ecosystem?

• New species will quickly replace it

• The ecosystem could be significantly impacted

• The ecosystem becomes more diverse

• The ecosystem remains unchanged