This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 212 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 212 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A density dependent factor is ..... A) Where the effect on a population will always be the same no matter the population size. B) Where a population has reached its limit for the number of individuals the ecosystem can uphold. C) Where allele frequencies will always remain the same. D) Where the the effect something has on a population will be due to how many organisms are in the population. Show Answer Correct Answer: D) Where the the effect something has on a population will be due to how many organisms are in the population. 2. Global warming has been linked to a decrease in A) The size of the polar ice caps. B) The temperature of Earth. C) The rate of species extinction. D) The rate of carbon dioxide production. Show Answer Correct Answer: A) The size of the polar ice caps. 3. Coniferous (Boreal) forests are made up primarily of trees that ..... A) Change color in the fall. B) Bear cones. C) Shed their leaves. D) Have thin bark. Show Answer Correct Answer: B) Bear cones. 4. Who is considered as the pioneer in ecological succession A) Eugene P Odum. B) Henry Cowles. C) Eugene Warming. D) Charles Elton. Show Answer Correct Answer: B) Henry Cowles. 5. Organisms that can make glucose during photosynthesis are called ..... A) Consumers. B) Producers. C) Scavengers. D) Carnivores. Show Answer Correct Answer: B) Producers. 6. An organism that eats only plant is called an ..... A) Vegetarian. B) Herbivore. C) Carnivore. D) Omnivore. Show Answer Correct Answer: B) Herbivore. 7. A new species of animal that can tolerate drought has been found. These animals graze in herds and like grasses with high silica content. Which biome does this animal MOST LIKELY inhabit? A) Taiga. B) Savanna. C) Temperate deciduous forest. D) Desert. Show Answer Correct Answer: B) Savanna. 8. What does not produce carbon dioxide? A) Photosynthesis. B) Burning Fossil Fuels. C) Animal respiration. D) Plants decaying. Show Answer Correct Answer: A) Photosynthesis. 9. The study of interactions among organisms and their environment is called ..... A) Ecology. B) Sociology. C) The scientific method. D) Astrology. Show Answer Correct Answer: A) Ecology. 10. Mia, Abigail, and Grace went to a zoo. They saw a lion that was being fed. If the lion only eats meat, what type of organism would it be considered? A) Herbivore. B) Vegan. C) Omnivore. D) Carnivore. Show Answer Correct Answer: D) Carnivore. 11. This is where an organism lives A) Habitat. B) Niche. C) Heterotrophs. D) Biosphere. Show Answer Correct Answer: A) Habitat. 12. Trait A) Character trait. B) Feature of an organism. C) Egg, tadpole, frog. D) None of above. Show Answer Correct Answer: B) Feature of an organism. 13. An S-shaped curve is known as A) Exponential graph. B) Logistic Graph. C) Survivorship curves. D) Graphs. Show Answer Correct Answer: B) Logistic Graph. 14. Which is a MAJOR cause of acid rain? A) Spraying pesticides on crops. B) Burning fossil fuels for energy. C) Dumping sewage in rivers. D) Using Nuclear power stations. Show Answer Correct Answer: B) Burning fossil fuels for energy. 15. Which of the following is biotic interacting with abiotic factors? A) A rock rolls off a cliff. B) The sun heats up the inside of a car. C) Human builds a house with stone. D) A cow eats grass. Show Answer Correct Answer: C) Human builds a house with stone. 16. Which of the following organisms recycle materials from dead organisms and their waste products? A) Autotrophs. B) Heterotrophs. C) Scavengers. D) Decomposers. Show Answer Correct Answer: D) Decomposers. 17. An organism that hunts and eats other organisms A) Prey. B) Predator. C) Camouflage. D) Omnivore SHOW ANSWER. Show Answer Correct Answer: B) Predator. 18. The process of changing nitrogen gas to nitrates A) Nitrogen fixation. B) Groundwater. Show Answer Correct Answer: A) Nitrogen fixation. 19. How does habitat fragmentation reduce genetic diversity in species? A) Habitat fragmentation makes nonnative species introduction possible. B) Habitat fragmentation opens migration routes. C) Habitat fragmentation isolates a large population into smaller groups. D) Habitat fragementation encourages open gene flow. Show Answer Correct Answer: C) Habitat fragmentation isolates a large population into smaller groups. 20. Although Keystone Species can cause a significant change to the ecosystem's population, ..... populations must always be in the greatest quantity for ecosystem health. A) Producers. B) Primary consumers. C) Secondary consumers. D) Tertiary consumers. Show Answer Correct Answer: A) Producers. ← 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