This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 125 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 125 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of organism helps to reduce atmospheric carbon dioxide? A) Carnivores. B) Producers. C) Decomposers. D) Herbivores. Show Answer Correct Answer: B) Producers. 2. Algae growth in a lake can be a result of which of these? A) Eutrophication/Nitrogen runoff. B) Over population of fish. C) Not enough clouds. D) Commensalism. Show Answer Correct Answer: A) Eutrophication/Nitrogen runoff. 3. Be threatened with extinction A) Red Book. B) Extinction. C) Be in danger of extinction. D) Global problems. Show Answer Correct Answer: C) Be in danger of extinction. 4. What pattern of growth will a population with limited resources show? A) Density-dependent. B) Exponential. C) Logistic. D) Logical. Show Answer Correct Answer: C) Logistic. 5. What's one problem with the pythons gobbling up all the small animals in the Everglades park? (paragraph 4) A) Other animals can't find any food. B) The deer weighed a total of 160 pounds. C) Scientists don't know exactly how many pythons are out there. D) None of above. Show Answer Correct Answer: A) Other animals can't find any food. 6. Some limiting factors that affect populations include lack of food, lack of water, lack of living space, and the spread of disease. A) True. B) False. Show Answer Correct Answer: A) True. 7. An organism that eats the secondary consumer. A) Primary Consumer. B) Secondary Consumer. C) Tertiary Consumer. D) Consumer. Show Answer Correct Answer: C) Tertiary Consumer. 8. Camouflage is an example of an ..... that a prey might have to survive. A) Niche. B) Prey. C) Competition. D) Adaptation. Show Answer Correct Answer: D) Adaptation. 9. Which biome is very dry for most or all of the year? A) Rainforest. B) Temperate forest. C) Swamp. D) Desert. Show Answer Correct Answer: D) Desert. 10. When birth rate is high and death rate is low ..... A) Population increases. B) Population decreases. C) Population stays the same. D) All of these. Show Answer Correct Answer: A) Population increases. 11. 1 living thing is called an ..... A) Population. B) Ecosystem. C) Organism. D) None of above. Show Answer Correct Answer: C) Organism. 12. A producer is a A) Carnivore. B) Animal. C) Green plant. D) Omnivore. Show Answer Correct Answer: C) Green plant. 13. What is ecosystem diversity ..... ? ..... A) Number of different species in the biosphere. B) Regional extinction. C) A species whose numbers are so small that the species is at risk of extinction. D) The variety of ecosystems that are present in the biosphere. Show Answer Correct Answer: D) The variety of ecosystems that are present in the biosphere. 14. Oxygen makes up most of Earth's atmosphere. A) True. B) False. Show Answer Correct Answer: B) False. 15. Oceans Humans are one of the main things that pollute the ocean. A) True. B) False. Show Answer Correct Answer: A) True. 16. A place where an organism lives that provides them food and shelter in order to survive. A) Population. B) Habitat. C) Ecosystem. D) Biotic. Show Answer Correct Answer: B) Habitat. 17. Abigail, Samuel, and Maya are studying the growth of plants in their school garden. They notice that some plants are not growing well. They realize that something is restricting the growth of these plants. This is known as a ..... A) Food shortage. B) Snow. C) Disease. D) Limiting factor. Show Answer Correct Answer: D) Limiting factor. 18. All the living (biotic) parts of an environment as well as the interactions among them A) True. B) False. Show Answer Correct Answer: B) False. 19. An organism's specific role in its habitat is called its A) Consumer. B) Niche. C) Birth right. D) Mutualism. Show Answer Correct Answer: B) Niche. 20. The 2 kingdoms that make up Prokaryotes are? A) Animals and Plants. B) Protists and Fungi. C) Archea and Bacteria. D) None of above. Show Answer Correct Answer: C) Archea and Bacteria. ← 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