This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 49 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 49 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A rock or boulder is considered A) Biotic. B) Abiotic. Show Answer Correct Answer: B) Abiotic. 2. Omnivores eat: A) Plants. B) Animals. C) Both plants and animals. D) Dead organisms. Show Answer Correct Answer: C) Both plants and animals. 3. 2 male deer fighting over a female. This is an example of A) Competition. B) Mutualism. C) Parasitism. D) Commensalism. Show Answer Correct Answer: A) Competition. 4. An animal that hunts and eats another animal. A) Prey. B) Predator. Show Answer Correct Answer: B) Predator. 5. What is bioaccumulation or biomagnification? A) Buildup of toxins in an organism. B) The total mass/amount of organisms in a given area. C) The number of different species in an area. D) None of above. Show Answer Correct Answer: A) Buildup of toxins in an organism. 6. There is a wide range of organisms within any ecosystem. What is the name for the wide range of life that we need to protect in our ecosystem? A) Adapting. B) Ecology. C) Biodiversity. D) Ecosystem. Show Answer Correct Answer: C) Biodiversity. 7. A type of symbiotic relationship where one organism benefits and the other is neither helped nor harmed A) Competition. B) Predation. C) Mutualism. D) Commensalism. Show Answer Correct Answer: D) Commensalism. 8. Things that are NON-living in an environment (air, water, soil, sunlight) A) Biotic Factors. B) Abiotic Factors. C) Organism. D) Biosphere. Show Answer Correct Answer: B) Abiotic Factors. 9. All of the living parts of an ecosystem are ..... A) Biology. B) Biotic. C) Abiotic. D) Biography. Show Answer Correct Answer: B) Biotic. 10. The reciprocal interrelations between living & non living world is referred to as: A) Morphology. B) Ecology. C) Physiology. D) Cytology. Show Answer Correct Answer: B) Ecology. 11. A relationship where one organism benefits while the other is harmed is called ..... A) Parasitism. B) Mutualism. C) Commensalism. D) None of above. Show Answer Correct Answer: A) Parasitism. 12. True or false:The process of nutrient regeneration recycles nutrients back to primary producers. A) True. B) False. Show Answer Correct Answer: A) True. 13. Energy that flows through an ecosystem originates from the ..... A) Producer. B) Plants. C) Sun. D) None of above. Show Answer Correct Answer: C) Sun. 14. Which human activity has had the greatest impact on climate change? A) Building skyscrapers. B) Deforestation. C) Burning fossil fuels. D) Production of nuclear waste. Show Answer Correct Answer: C) Burning fossil fuels. 15. The nutrient that is the slowest to recycle is A) Carbon. B) Phosphorus. C) Nitrogen. D) Sulfur. Show Answer Correct Answer: B) Phosphorus. 16. In a parasitic relationship, one organism is ..... and one organism is benefiting. A) Helped. B) Harmed. C) Not effected. D) Happy. E) Unbothered. Show Answer Correct Answer: B) Harmed. 17. Which is an example of a behavioral adaptation? A) Claws. B) Beak. C) Thumb. D) Migration. Show Answer Correct Answer: D) Migration. 18. An environmental factor that causes the population to decrease is called A) Limiting factor. B) Carrying capacity. C) Population density. D) Ecosystem. Show Answer Correct Answer: A) Limiting factor. 19. The nonliving aspects of an ecosystem. A) Abiotic factors. B) Biotic factors. C) Consumers. D) Herbivores. Show Answer Correct Answer: A) Abiotic factors. 20. Which of the following is abiotic? A) A tree in a forest. B) Wood from the tree on the forest floor. C) A termite on the tree. D) The soil the tree is growing in. Show Answer Correct Answer: D) The soil the tree is growing in. ← 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