This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 215 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 215 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An organism that cannot make its own food A) Consumer. B) Producer. C) Tree. D) Leaf. Show Answer Correct Answer: A) Consumer. 2. An organism that gets its energy by eating or consuming other organisms A) Consumer. B) Producer. C) Scavenger. D) Decoposer. Show Answer Correct Answer: A) Consumer. 3. Angel was trying to explain carrying capacity to her mother. Which of the following descriptions is accurate? Carrying capacity is: A) The maximum number of individuals that an ecosystem can sustain. B) The ability of an environment to accommodate a growing population. C) The number of predators that an area can sustain over the long term. D) The maximum number of species that can co-exist in an area. Show Answer Correct Answer: A) The maximum number of individuals that an ecosystem can sustain. 4. What term do ecologists use to describe where an animal lives (an animal's home)? A) Ecosystem. B) Ecologist. C) Habitat. D) Population. Show Answer Correct Answer: C) Habitat. 5. Keystone species are A) Critical to the functioning of an ecosystem. B) Species that decrease the biodiversity of an ecosystem. C) Species that have very little impact on other species in a community. D) None of above. Show Answer Correct Answer: A) Critical to the functioning of an ecosystem. 6. Which of the following is not a threat to biodiversity? A) Deforestation. B) Introduction of invasive species. C) Farming and agriculture. D) Protecting natural resources. Show Answer Correct Answer: D) Protecting natural resources. 7. Alloy-structurestructure-alloy A) Right. B) Wrong. Show Answer Correct Answer: B) Wrong. 8. Indicates the organism's position in a sequence of energy transfers A) Trophic level. B) Limiting factors. C) Carrying capacity. D) None of above. Show Answer Correct Answer: A) Trophic level. 9. Which of the following is a characteristic of deserts? A) Little precipitation. B) Tall trees. C) Broad leaved plants. D) Hot days and nights. Show Answer Correct Answer: A) Little precipitation. 10. A nonliving element in an ecosystem is an A) Animal. B) Abiotic factor. C) Biotic factor. D) Organism. Show Answer Correct Answer: B) Abiotic factor. 11. A frog eats a fly. The frog and fly are demonstrating ..... A) Mutualism. B) Competition. C) Predator/prey. D) Parasitism. Show Answer Correct Answer: C) Predator/prey. 12. These eat only autotrophs A) Herbivore. B) Omnivore. C) Carnivore. D) None of above. Show Answer Correct Answer: A) Herbivore. 13. Which is the percentage of energy lost in each trophic level as heat? A) 10 %. B) 20%. C) 0, 1 %. D) 100 %. Show Answer Correct Answer: A) 10 %. 14. What restricts the length of a food chain? A) A greater biomass at the higher trophic levels. B) The number of species in the food web. C) Energy losses between the trophic levels. D) The consumption of waste by detritivores. Show Answer Correct Answer: C) Energy losses between the trophic levels. 15. A squirrel hides his acorns from the chipmunks for the winter. A) Commensalism. B) Parasitism. C) Competition. D) Mutualism. Show Answer Correct Answer: C) Competition. 16. Which of the following is an example of an interaction between a living and nonliving organism? A) A snake using a mouse for food. B) A worm using the soil as shelter. C) A bird using an insect for food. D) None of above. Show Answer Correct Answer: B) A worm using the soil as shelter. 17. In going from one trophic level to the next higher level, A) The number of organisms increases. B) The amount of usable energy increases. C) The amount of usable energy decreases. D) Diversity of organisms increases. Show Answer Correct Answer: C) The amount of usable energy decreases. 18. A compound consists of two or more elements bound together. A) True. B) False. Show Answer Correct Answer: A) True. 19. Which nutrient cannot be found within the atmosphere? A) Water. B) Nitrogen. C) Carbon. D) Phosphorus. E) Oxygen. Show Answer Correct Answer: D) Phosphorus. 20. A herbivore eats A) Only plants. B) Only animals. C) Plants and animals. D) Sunlight. Show Answer Correct Answer: A) Only plants. ← 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