This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 203 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 203 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is a biotic factor in an ocean ecosystem? A) The salt content of the water. B) The temperature of the water. C) The fish in the water. D) The oxygen in the water. Show Answer Correct Answer: C) The fish in the water. 2. What makes a Food Web different from a Food Chain A) It shows energy flow. B) It identifies Keystone Species. C) It shows trophic levels. D) It shows interwoven feeding chains. Show Answer Correct Answer: D) It shows interwoven feeding chains. 3. What type of disturbance can be beneficial to ecosystems and communities? A) Volcanic Eruption. B) Fire. C) Invasive Species. D) Flood. Show Answer Correct Answer: B) Fire. 4. What is the name of an animal that is hunted and eaten by other animals? A) Producer. B) Prey. C) Predator. D) Decoposer. Show Answer Correct Answer: B) Prey. 5. Forms of precipitation are- A) Only sleet and snow. B) Rain, sleet, hail, and snow. C) Only dew and rain. D) Only snow and rain. Show Answer Correct Answer: B) Rain, sleet, hail, and snow. 6. What are large geographical areas that have similar climates and life no matter their location? A) Biosphere. B) Communities. C) Biomes. D) Ecosystem. Show Answer Correct Answer: C) Biomes. 7. The environment is ..... A) The biotic factors in an ecosystem. B) A group of plants or animals. C) The surroundings or conditions in which an animal or plant lives. D) The living parts of an ecosystem. Show Answer Correct Answer: C) The surroundings or conditions in which an animal or plant lives. 8. Two organisms that live together and BOTH benefit is referred to as ..... A) Photosynthesis. B) Mutualism. C) Parasitism. D) Predation. Show Answer Correct Answer: B) Mutualism. 9. Mitosis and meiosis are processes by which animal and plant cells divide. Which statement best describes a difference between mitosis and meiosis? A) Meiosis is a multi-step process. B) Mitosis occurs only in eukaryotic cells. C) Meiosis is used in the repair of an organism. D) Mitosis produces genetically identical daughter cells. Show Answer Correct Answer: D) Mitosis produces genetically identical daughter cells. 10. If scientists are studying egrets, herons, marsh crabs and spartina grass, but not the water or the rocks in the salt marsh, what level of ecological organization would they be studying? A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: C) Community. 11. Marine ecosystem that connects a river with the ocean A) Estuary. B) Salt marsh. C) Mangrove swamp. D) Coral reef. Show Answer Correct Answer: A) Estuary. 12. Anywhere on earth that supports life A) Biosphere. B) Populations. C) Community. D) None of above. Show Answer Correct Answer: A) Biosphere. 13. As energy moves up the pyramid, each level has ..... energy available than the level below A) Less. B) More. C) Moderate. D) The majority. Show Answer Correct Answer: A) Less. 14. Predator to prey is A) A producer. B) A trophic level. C) A feeding relationship. D) None of above. Show Answer Correct Answer: C) A feeding relationship. 15. What is the primary source of energy in a food chain? A) Light energy from the sun. B) Meat from animals. C) Plants and animals. D) None of above. Show Answer Correct Answer: A) Light energy from the sun. 16. How is a community different from a population? A) Communities have biotic and abiotic factors. B) Communities have one species living together. C) Communities have many different species living together. D) Community begins with one individual. Show Answer Correct Answer: C) Communities have many different species living together. 17. What effect did reintroducing wolves to Yellowstone park have? A) Diversity increased. B) Diversity decreased. C) Wolves destroyed the habitat. D) Wolves attacked people in the park. Show Answer Correct Answer: A) Diversity increased. 18. Why must ALL organisms have food? A) Food is a source of energy. B) Food supplies cells with oxygen. C) Organisms never make their own food. D) Because I said so. Show Answer Correct Answer: A) Food is a source of energy. 19. In this food web, the lion plays the role of ..... A) Secondary Consumer. B) Apex predator. C) Producer. D) Prey. Show Answer Correct Answer: B) Apex predator. 20. How does energy flow in a food chain? A) From the lowest trophic level to the highest. B) From the consumer to the producer. C) From the sun to the consumer. D) From the highest trophic level to the lowest. Show Answer Correct Answer: A) From the lowest trophic level to the highest. ← PreviousNext →Related QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9Ecology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books