Ecology Quiz With Answers: Test Your Knowledge
This ecology quiz covers ecosystems, habitats and niches, food webs, producers and decomposers, biomes, keystone species, the carbon cycle and human impacts. Test your knowledge with 10 questions on how living things interact with each other and their environment.
Start Ecology Quiz With Answers Quiz
🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds
Definition
What is ecology?
Ecosystem
What is an ecosystem?
Producers
Which organisms are producers in most food chains?
Decomposers
Which organisms break down dead material?
Keystone
Which animal is a famous keystone species in kelp forests?
Biomes
Which biome has the greatest biodiversity on land?
Niche
What is an organism's niche?
Wolves
What happened after wolves returned to Yellowstone in 1995?
Carbon
Which process removes carbon dioxide from the air?
Founder
Who coined the word ecology in 1866?
Your score
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Scroll down to see the explanation for each question.
Explanations: answer key for all 10 questions
- Q1: What is ecology?
Answer: The study of living things and their environment
The word comes from Greek oikos, meaning house.
- Q2: What is an ecosystem?
Answer: Living things and their physical environment together
Ponds and forests are ecosystems.
- Q3: Which organisms are producers in most food chains?
Answer: Plants and algae
They make food from sunlight.
- Q4: Which organisms break down dead material?
Answer: Decomposers like fungi and bacteria
They recycle nutrients.
- Q5: Which animal is a famous keystone species in kelp forests?
Answer: Sea otter
Otters eat urchins that would destroy kelp.
- Q6: Which biome has the greatest biodiversity on land?
Answer: Tropical rainforest
Rainforests hold over half of land species.
- Q7: What is an organism's niche?
Answer: Its role and way of life in an ecosystem
No two species share exactly the same niche.
- Q8: What happened after wolves returned to Yellowstone in 1995?
Answer: Ecosystems changed in a trophic cascade
Elk behavior changed, helping plants recover.
- Q9: Which process removes carbon dioxide from the air?
Answer: Photosynthesis
Forests and oceans store carbon.
- Q10: Who coined the word ecology in 1866?
Answer: Ernst Haeckel
He was a German biologist.
Ecology Quiz – Webs of Life
Ecology studies how living things interact with each other and with their environment. Ecosystems include plants, animals, fungi and microbes along with soil, water, sunlight and climate, all linked in complex relationships.
Energy flows through ecosystems from producers like plants to consumers and decomposers. Nutrients such as carbon and nitrogen cycle between living things and the environment. Keystone species, like sea otters and wolves, have outsized effects on their ecosystems.
Human activities, from farming to pollution and climate change, affect ecosystems worldwide. Ecology helps us understand these impacts and guides conservation, restoration and sustainable use of natural resources.
What This Quiz Teaches
This quiz is for students and nature fans learning ecology.
- What ecosystems are
- What producers and decomposers do
- What keystone species are
- Which biome is richest
- How carbon cycles
Did You Know?
- Coral reefs cover under 1% of the ocean but host a quarter of marine species.
- Beavers are ecosystem engineers.
- Bees pollinate many crops.
- Mangroves protect coasts from storms.
- Island species are often vulnerable to extinction.
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