This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 111 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 111 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Ecology is the study of the ..... between plants and animals. A) Interrelationships. B) Significance. Show Answer Correct Answer: A) Interrelationships. 2. A living thing (one thing) that carry out life processes independently. A) Organism. B) Abiotic. C) Community. D) Biosphere. Show Answer Correct Answer: A) Organism. 3. Why are plants called producers? A) Plants need to eat to get energy. B) Plants don't use enegry. C) Plants make their own food. D) None of above. Show Answer Correct Answer: C) Plants make their own food. 4. Consumers that have a varying diet A) Generalist. B) Herbivore. C) Specialist. D) Decoposer. Show Answer Correct Answer: A) Generalist. 5. The role of an organism in an ecosystem. A) Producer. B) Habitat. C) Niche. D) Decoposer. Show Answer Correct Answer: C) Niche. 6. In an ecosystem, when the population of rabbits increases the population of wolves will? A) Increase. B) Decrease. C) Stay the same. D) Not be affected. Show Answer Correct Answer: A) Increase. 7. Why are heterotrophs named that way? A) Because they can feed themselves from non-living factors. B) Because they feed on other living organisms. C) Because they are producers. D) None of above. Show Answer Correct Answer: B) Because they feed on other living organisms. 8. The place where an animal or a plant lives is called ..... A) Comfort zone. B) Habitat. C) Organism. D) Population. Show Answer Correct Answer: B) Habitat. 9. A wetland food chain is made up of plankton, shrimp, fish, and dolphins. Which of the following is the original source of energy for all of the organisms in the food chain? A) Air. B) Ice. C) Water. D) Sunlight. Show Answer Correct Answer: D) Sunlight. 10. Which pyramids of numbers might have fewer producers than primary consumers? A) A forest. B) An aquatic ecosystem. C) Grasslands. D) A forest and aquatic ecosystem. Show Answer Correct Answer: D) A forest and aquatic ecosystem. 11. Which one of the following is NOT a characteristic of a living thing: A) All living things grow and develop over the course of their lives. B) Every living thing is made of cells. C) Living things react to stimuli in their surroundings. D) Living things make their own energy without outside factors. Show Answer Correct Answer: D) Living things make their own energy without outside factors. 12. What happens when organisms die and decay? A) Their nitrogen moves to the air as nitrogen gas. B) Their nitrogen returns to the soil as ammonium. C) Their nitrogen becomes tapped in clay and is unusable. D) They stay on earth forever. Show Answer Correct Answer: B) Their nitrogen returns to the soil as ammonium. 13. Orchids grow on trees to capture more sunlight, the tree is not harmed A) Parasitism. B) Mutualism. C) Commensalism. D) None of above. Show Answer Correct Answer: C) Commensalism. 14. Which of the following describes a native population where there has been a decrease in the availability of food? A) An extinct wolf population remains extinct in a local forest. B) A goldfish population that has fewer individuals than the prior year. C) A pigeon population that has the same number of offspring as the past two years. D) A frog population has more adults in a pond than when they were counted last year. Show Answer Correct Answer: B) A goldfish population that has fewer individuals than the prior year. 15. Competition for food is a limiting factor that can cause a decrease in the growth of a population. The growth of which type of population will most strongly be affected by this limiting factor? A) Large and dense. B) Small and sparse. C) Large and sparse. D) Small and growing. Show Answer Correct Answer: A) Large and dense. 16. Inherited trait A) Something you get from your parents, ex-clothes, furniture, money. B) Something you get from your sibling, ex-hair, eye, freckles, skin. C) Something you get from your parents, ex-hair color, eye color, nose, ears. D) None of above. Show Answer Correct Answer: C) Something you get from your parents, ex-hair color, eye color, nose, ears. 17. Which of the following is commensalism? A) One organism eats the other organism. B) One organism benefits and the other also benefits. C) One organism benefits and the other is harmed. D) One organism benefits and one is unaffected. Show Answer Correct Answer: D) One organism benefits and one is unaffected. 18. An area that is saturated with or covered by water for at least one season of the year is a(n) A) Swamp. B) Bog. C) Fen. D) Wetland. Show Answer Correct Answer: D) Wetland. 19. What is an example of a biotic factor? A) Skunk. B) Rocks. C) Soil. D) Water. Show Answer Correct Answer: A) Skunk. 20. What is not a factor of the physical environment? A) Temperature. B) Trees. C) PH. D) Air. Show Answer Correct Answer: B) Trees. ← 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