This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 210 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 210 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The symbiotic relationship where both organisms benefit. A) Competition. B) Mutualism. C) Commensalism. D) Predation. Show Answer Correct Answer: B) Mutualism. 2. Feeds only on plants A) Carnivore. B) Herbivore. C) Omnivore. D) Detrivorous. Show Answer Correct Answer: B) Herbivore. 3. Which of the following is NOT a nonliving thing? (which one is living?) A) Sun. B) Rocks. C) Milk. D) Wood. Show Answer Correct Answer: D) Wood. 4. Which ecological method is being used if you set up the effect of different levels of sunlight on plant growth A) Observation. B) Modeling. C) Experimenting. D) Questioning. Show Answer Correct Answer: C) Experimenting. 5. The great hornbill and the toucan both eat the same fruit, insects, and nuts. They both live in the rainforest. Their large bills function to get food and also as warning coloration. Which of the following is a limiting factor to the toucan population? A) Overlapping breeding seasons. B) Bill coloration. C) Genetic variability. D) Competition. Show Answer Correct Answer: D) Competition. 6. The rate at which biomass accumulates. A) Net Primary Productiviey. B) Gross Primary Productivity. Show Answer Correct Answer: A) Net Primary Productiviey. 7. Which of the following is NOT an outcome of high population density? A) Mortality increase. B) Competition becomes less. C) Reduction in births. D) Decreased resource availability. Show Answer Correct Answer: B) Competition becomes less. 8. A group of organisms of one species that live in an area at the same time A) Population. B) Habitat. C) Niche. D) Community. Show Answer Correct Answer: A) Population. 9. Hydroelectric power is A) Renewable. B) Nonrenewable. Show Answer Correct Answer: A) Renewable. 10. Which type of organism receives energy from every other organisms in the trophic levels? A) Primary consumers. B) Primary producers. C) Decomposers. D) Secondary consumers. Show Answer Correct Answer: C) Decomposers. 11. What lives in the roots of plants that fix the nitrogen so that plants can use the nitrogen? A) Bacteria. B) Viruses. C) Malaria. D) Protists. Show Answer Correct Answer: A) Bacteria. 12. If humans clear out forest to create space for their goats to graze, it is most likely to have a harmful effect directly on A) Bird that eat insects that are stirred up ny the grazers. B) Plants that compete with grasses for nutrients. C) Prairie dogs that are also herbivores. D) Insects that pollinate flowers. Show Answer Correct Answer: C) Prairie dogs that are also herbivores. 13. Bacteria are an example of producers. A) True. B) False. Show Answer Correct Answer: A) True. 14. The role a species plays within a community is its? A) BIOSPHERE. B) HABITAT. C) NICHE. D) ENVIRONMENT. Show Answer Correct Answer: C) NICHE. 15. What is an ecosystem? A) A population of different species. B) A community of living and non living organisms. C) A population of the same species. D) The community of Belton Middle school/ Freshman center. Show Answer Correct Answer: B) A community of living and non living organisms. 16. Invasive species alter the ecosystem by ..... in number quickly. This leads to ..... food for the native species. A) Increasing, less. B) Increasing, more. C) Decreasing, less. D) Decreasing, more. Show Answer Correct Answer: A) Increasing, less. 17. A green pigment that captures light energy for photosynthesis. A) Chloroplast. B) Chlorophyll. C) Mitochondria. D) Vacuoles. Show Answer Correct Answer: B) Chlorophyll. 18. In an ecosystem, everything is ..... A) Connected to everything else. B) Separate from each other. C) Alive. D) Must eat other organisms to survive. Show Answer Correct Answer: A) Connected to everything else. 19. How is a food web different from a food chain? A) Food webs contain only producers, not consumers. B) . Food webs do not include decomposers. C) Food webs contain many different, linked food chains. D) Food webs exist in aquatic environments; food chains exist in terrestrial environments. Show Answer Correct Answer: C) Food webs contain many different, linked food chains. 20. What type of invasive control involves physically removing the animal by hunting, trapping, fishing, or other methods? A) Biological Control. B) Mechanical Control. C) Chemical Control. D) Kinetic Control. Show Answer Correct Answer: B) Mechanical Control. ← 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