This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 153 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 153 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... is the conversion of organic nitrogen into ammonia A) Nitrogen Fixation. B) Ammonification. C) Denitrification. D) Assimilation. Show Answer Correct Answer: B) Ammonification. 2. What is the defintion of an organism? A) A living thing. B) A single organism. C) All the organisms of one species in a habitat. D) All the different species living in a habitat. Show Answer Correct Answer: A) A living thing. 3. All of the deserts around the world can be considered one ..... A) Biosphere. B) Biome. C) Community. D) Ecosystem. Show Answer Correct Answer: B) Biome. 4. Quality assurance / quality control (qa/qc) A) Quality assurance/quality control. B) Radioactive waste. C) Ravine. D) Reuse, recovery, recycling. Show Answer Correct Answer: A) Quality assurance/quality control. 5. Which biome consists of warm weather year-round, a dry season and a rainy season, and diverse trees, shrubs, and grasses? A) Tropical rainforest. B) Temperate grassland. C) Savanna. D) Desert. Show Answer Correct Answer: C) Savanna. 6. When a population grows rapidly then reaches its carrying capacity, it is this type of growth model A) Bell curve. B) Simplistic. C) Logistic. D) Hyperbole. Show Answer Correct Answer: C) Logistic. 7. Barnacles create home sites on whales. This relationship neither helps or harms the whale A) Competition. B) Predation. C) Mutualism. D) Commensalism. E) Parasitism. Show Answer Correct Answer: D) Commensalism. 8. The reestablishment of a damaged ecosystem in an area where the soil is intact is called ..... A) Primary succession. B) Secondary succession. C) Pioneer succession. D) Symbiotic succession. Show Answer Correct Answer: B) Secondary succession. 9. What is the foundation of energy for ALL food webs, ocean biomes included? A) Oxygen. B) Clouds. C) Animals. D) Sun. Show Answer Correct Answer: D) Sun. 10. Consists of all life on earth and all parts of earth in which life exists, including land, water and the atmosphere. A) Ecology. B) Ecosystems. C) Biomes. D) Habitat. Show Answer Correct Answer: A) Ecology. 11. Occupational Illness A) Oil slick. B) Peninsula. C) Occupational disease. D) Pesticide. Show Answer Correct Answer: C) Occupational disease. 12. What is a Herbivores? A) A animal that eats plant. B) A animal that eats meat. C) A plant that makes its own food. D) A plant that eats meat. Show Answer Correct Answer: A) A animal that eats plant. 13. The acidity of a local stream would most likely be affected by A) A change in the percentage of decomposers livingin the stream. B) A new source of air pollution. C) A new predator species being introduced to theecosystem. D) A decrease in the amount of sunlight that reaches the stream. Show Answer Correct Answer: B) A new source of air pollution. 14. What is ozone depletion caused by? A) By acid rains. B) By melting of the ice near The North and South Poles. C) By pollution of the air by CFCs. D) None of above. Show Answer Correct Answer: C) By pollution of the air by CFCs. 15. Respiration is the process by which animals take in ..... and release ..... A) Photosynthesis, air. B) Carbon, oxygen. C) Oxygen. D) Oxygen, carbon dioxide. Show Answer Correct Answer: D) Oxygen, carbon dioxide. 16. The factors in an ecoysystem that have never had the ability to live. A) Biotic Factor. B) Abiotic Factor. C) Biome. D) Community. Show Answer Correct Answer: B) Abiotic Factor. 17. An ecosystem is broken up into several smaller sections due to human activities ( building roads and deforestation ). This is an example of A) Monoculture. B) Overexplotation. C) Habitat fragmentation. D) Global warming. Show Answer Correct Answer: C) Habitat fragmentation. 18. What type of symbiosis? * Human intestine provides food for bacteria that live inside digestive system *Beneficial bacteria live in the intestine of humans and help digest cellulose from plants which humans don't have the enzymes to break down. A) Commensalism. B) Mutualism. C) Parasitism. D) Predation. Show Answer Correct Answer: B) Mutualism. 19. The amount of mater that cycles through a food web A) Increases. B) Decreases. C) Changes. D) Stays constant. Show Answer Correct Answer: D) Stays constant. 20. Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem? A) The rabbit population may increase. B) The rabbit population may decrease. C) The rabbit population may increase first, then decrease. D) The rabbit population will remain the same. Show Answer Correct Answer: B) The rabbit population may decrease. ← 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