This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 276 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 276 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the group in an experiment that receives treatment with the independent variable? A) Control group. B) Experimental group. Show Answer Correct Answer: B) Experimental group. 2. What are the three components of soil? A) Insects, sand, topsoil. B) Clay, sand, humus. C) Topsoil, subsoil, bedrock. D) Earthworms, sand, silt. Show Answer Correct Answer: B) Clay, sand, humus. 3. Which biome has an abundance of grass and flowers, erratic precipitation, is warm in summer, and very cold in winter? A) Shrubland. B) Grassland. C) Temperate deciduous rainforest. D) Coniferous rainforest. Show Answer Correct Answer: B) Grassland. 4. The element of life is A) Carbon. B) Water. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: A) Carbon. 5. Where did all of the energy in this food web originally come from? A) Soil. B) Producers. C) Air. D) Sun. Show Answer Correct Answer: D) Sun. 6. What was NOT a part of the water cycle? A) Condensation. B) Precipitation. C) Decompostition. D) Evaporation. Show Answer Correct Answer: C) Decompostition. 7. In an ecosystem, grass is eaten by mice and mice are eaten by snakes. If the mouse population decreases, what happens to the snake population? A) Increases. B) Decreases. C) Stays the same. D) None of above. Show Answer Correct Answer: B) Decreases. 8. The highest concentration of life exists in the top 200 meters of ocean water. What is the most important factor that influences the concentration of life? A) Amount of gases at the surface. B) Amount of nutrients in the water. C) Large number of predators at lower depths. D) Amount of sunlight. Show Answer Correct Answer: D) Amount of sunlight. 9. How do producers get energy? A) Eating plants and seeds. B) Eating other animals. C) Breaking down organisms through decay. D) Using the sun to make food. Show Answer Correct Answer: D) Using the sun to make food. 10. Estuary water should have A) Less salt than the ocean. B) More salt than the ocean. C) No salt. D) None of above. Show Answer Correct Answer: A) Less salt than the ocean. 11. Organisms that eat only meat are A) Carnivores. B) Herbivores. C) Omnivores. D) More destructive. Show Answer Correct Answer: A) Carnivores. 12. This biome has low biodiversity is subarid and subarctic and has poor soil quality A) Desert. B) Tundra. C) Taiga. D) Marine. Show Answer Correct Answer: C) Taiga. 13. What is a native specie? A) A specie that is local and has lived in the same place. B) A specie who has come from another state or country. C) A specie that has no "home" and travels for its whole life. D) None of the above. Show Answer Correct Answer: A) A specie that is local and has lived in the same place. 14. Occurs when ice and snow change directly to water vapor A) Sublimation. B) Nitrogen cycle. Show Answer Correct Answer: A) Sublimation. 15. Which of these is NOT a freshwater biome? A) Coral reef. B) Flowing water. C) Wetlands. D) Ponds and lakes. Show Answer Correct Answer: A) Coral reef. 16. Select the right translation:waste A) Waste. B) Size. C) Sale. D) Heavy. Show Answer Correct Answer: A) Waste. 17. Many science words can be easily broken down to find their true meaning. Look at the PREFIX below and match it to its meaning. BIO A) Home. B) Life. C) Not. D) Without. Show Answer Correct Answer: B) Life. 18. A science that studies the living conditions of living organisms, their relationship with each other and the surrounding inorganic nature. A) Physiology. B) Medicine. C) Economy. D) Geology. E) Ecology. Show Answer Correct Answer: E) Ecology. 19. Consist of non living things in an ecosystem A) Physical environment. B) Living environment. C) Food chain. D) Consumer. Show Answer Correct Answer: A) Physical environment. 20. What are two processes by which autotrophs make food? A) Chemosynthesis and photosynthesis. B) Photosynthesis and respiration. C) Chemosynthesis and decomposition. D) Decomposition and combustion. Show Answer Correct Answer: A) Chemosynthesis and photosynthesis. ← 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