This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 131 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 131 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The ozone layer protects us from A) Increased atmospheric heat. B) CFCs. C) UV rays. D) Decreased atmospheric heat. Show Answer Correct Answer: C) UV rays. 2. What is a small cat ..... A) A dog. B) A kitten. C) A puppy. D) A goat. Show Answer Correct Answer: B) A kitten. 3. What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers? A) Food web. B) An ecosystem. C) Food chain. D) A population. Show Answer Correct Answer: C) Food chain. 4. The movement of matter through biotic and abiotic environment is called ..... A) Matter cycling. B) Biogeochemical cycle. C) Photosynthesis. D) Carbon fixation. Show Answer Correct Answer: B) Biogeochemical cycle. 5. Living things in an environment, like grass or rabbits, are examples of: A) Abiotic factors. B) Biotic factors. C) Producers. D) Habitats. Show Answer Correct Answer: B) Biotic factors. 6. You can use the nitrogen in the atmosphere A) True. B) False. Show Answer Correct Answer: B) False. 7. This prevents the survival of organism A) Carrying Capacity. B) Limiting factor. C) Tolerance range. D) Optimum range. Show Answer Correct Answer: B) Limiting factor. 8. If a new organism or temperature came into an ecosystem A) A role an organism plays in an environment. B) Air, water, nutrients, sun, temperature. C) It can harm or destroy an ecosystem or distort the natural balance. D) Can be huge or tiny. Show Answer Correct Answer: C) It can harm or destroy an ecosystem or distort the natural balance. 9. Why do some animals hibernate? A) The cold weather makes them sleepy. B) Their food supply is smaller in the winter. C) They have no one to play with. D) They have low energy in the winter. Show Answer Correct Answer: B) Their food supply is smaller in the winter. 10. Recycling means ..... A) Travelling by bike. B) Using something again. C) Cleaning something. D) Cycling somewhere again. Show Answer Correct Answer: B) Using something again. 11. This biome has many names depending where in the world you are that include veldts, savannas, steppes, and prairies and receives 25 to 100 cm of rain a year. Lots of herbivores live here A) Tundra. B) Grasslands. C) Deserts. D) Boreal Forest. Show Answer Correct Answer: B) Grasslands. 12. A process by which animals use oxygen and food to make energy and carbon dioxide. A) Respiration. B) Photosynthesis. C) Running. D) Carbon. Show Answer Correct Answer: A) Respiration. 13. This biome has the most diverse species of plants and animals. A) Desert. B) Tropical rainforest. C) Savanna. D) Tundra. Show Answer Correct Answer: B) Tropical rainforest. 14. What of the following is listed in order correctly from smallest to largest? A) Organism, community, population, ecosystem, biome. B) Organism, population, community, ecosystem, biome. C) Organism, ecosystem, community, biome, population. D) Organism, population, ecosystem, community, biome. Show Answer Correct Answer: B) Organism, population, community, ecosystem, biome. 15. Which of the following is an example of a predator's adaptation? A) A porcupine's needles. B) A shark's powerful jaws. C) A frog's bright colors. D) A plant's poisonous chemicals. Show Answer Correct Answer: B) A shark's powerful jaws. 16. The use of oxygen to break down sugars to get energy A) Photosynthesis. B) Decomposition. C) Respiration. D) Chemosynthesis. Show Answer Correct Answer: C) Respiration. 17. Which process REMOVES carbon from the atmosphere? A) Combustion. B) Respiration. C) Photosynthesis. D) Death and decomposition. Show Answer Correct Answer: C) Photosynthesis. 18. The number of individuals per unit area is the definition of which? A) Population distribution. B) Population density. C) Survivorship type 1. D) Survivorship type 2. Show Answer Correct Answer: B) Population density. 19. Which catastrophic event will most likely cause an ecosystem to begin primary succession? A) To tornado. B) A volcanic eruption. C) A flood. D) None of above. Show Answer Correct Answer: B) A volcanic eruption. 20. Herbivores, omnivores, and carnivores are all A) Consumers. B) Decomposers. C) Producers. D) Scavengers. Show Answer Correct Answer: A) Consumers. ← PreviousNext →Related QuizzesScience QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books