This study set covers Environmental Science through 9 practice questions. Learn the fundamentals of ecosystems, their components, and interactions. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 9 questions from the Ecosystem Basics study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is an ecosystem?

A A community of interacting organisms and their physical environment.
B A group of animals living together.
C A collection of plants in a garden.
D A single organism.

2 Which of these is a biotic factor in an ecosystem?

A Sunlight
B Water
C A tree
D Soil

3 Which of these is an abiotic factor in an ecosystem?

A A fish
B A rock
C A bird
D A flower

4 What is the role of producers in an ecosystem?

A To consume other organisms
B To decompose dead organisms
C To create their own food through photosynthesis
D To hunt for food

5 What is the role of consumers in an ecosystem?

A To produce their own food
B To eat other organisms for energy
C To break down dead matter
D To provide shelter for other organisms

6 What is the role of decomposers in an ecosystem?

A To eat living organisms
B To break down dead organisms and waste
C To produce oxygen
D To provide energy

7 What is a food chain?

A A series of organisms that eat each other
B A group of animals that hunt together
C A cycle of water in an ecosystem
D A process of photosynthesis

8 What is a food web?

A A single line of organisms eating each other
B Interconnected food chains
C A type of spider web
D A system for distributing food

9 What is the source of energy for most ecosystems?

A Coal
B Oil
C The Sun
D Wind

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