This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 265 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 265 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which limiting factor most affects the population growth of plants in a garden? A) Space between plants. B) Number of seeds planted. C) Types of tools used in planting. D) Number of people tending the plants. Show Answer Correct Answer: A) Space between plants. 2. A flower is considered A) Abiotic. B) Biotic. Show Answer Correct Answer: B) Biotic. 3. When a organism struggles for limited resources A) Competition. B) Commensalism. C) Communism. D) Community. Show Answer Correct Answer: A) Competition. 4. Organisms that directly use energy from the sun to make their own food are called A) Autotrophs. B) Heterotrophs. C) Carnivores. D) Decomposers. Show Answer Correct Answer: A) Autotrophs. 5. Spiders eat flies. When drawing the food web for this relationship, you should draw the arrow: A) FROM the spider, TO the fly. B) FROM the fly, TO the spider. Show Answer Correct Answer: B) FROM the fly, TO the spider. 6. Which includes all living and nonliving components in an area? A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: D) Ecosystem. 7. Eats certain types of food A) Specialist. B) Generalist. C) Omnivore. D) None of above. Show Answer Correct Answer: A) Specialist. 8. What typically happens to a population if it exceeds its carrying capacity? A) Prey species increase. B) Birth rate will exceed death rate. C) Death rate will start to exceed birth rate. D) Migration into the area increases. Show Answer Correct Answer: C) Death rate will start to exceed birth rate. 9. What happens to carbon dioxide, oxygen & photosynthesis during deforestation? A) Photosynthesis decreases and carbon dioxide increases in the atmosphere. Oxygen decreases. B) Photosynthesis increases and carbon dioxide increases in the atmosphere. Oxygen increases. C) Photosynthesis doesn't change, carbon dioxide increases, and oxygen decreases. D) Photosynthesis decreases, Carbon Dioxide decreases, and Oxygen increases. Show Answer Correct Answer: A) Photosynthesis decreases and carbon dioxide increases in the atmosphere. Oxygen decreases. 10. The maximum number of individuals moving into a population. A) Limiting factor. B) Carrying capacity. C) Fluctuation. D) Dispersion. Show Answer Correct Answer: B) Carrying capacity. 11. In a food chain the flow of energy is always ..... A) Uncontrolled. B) Two way. C) Reversible. D) One way. Show Answer Correct Answer: D) One way. 12. The tropical rain forest biome includes regions of several continents. What do all of the regions have in common? A) Same species of animals. B) Same patterns of precipitation and temperature. C) Same area of land covered by vegetations. D) None. Show Answer Correct Answer: B) Same patterns of precipitation and temperature. 13. When organisms consume others, energy is being ..... A) Lost. B) Gained. Show Answer Correct Answer: A) Lost. 14. All the living things in an area makes up a(n): A) Ecosystem. B) Population. C) Biome. D) Community. Show Answer Correct Answer: D) Community. 15. When one organism hunts, eats, and kills anither organism for survival A) Competitive Relationships. B) Predator-PreyRelationships. C) Copperative Relationships. D) None of above. Show Answer Correct Answer: B) Predator-PreyRelationships. 16. Continued depletion of the ozone layer will most likely result in A) Anincrease in skin cancer among humans. B) A decreasein atmospheric pollutants. C) Anincrease in marine ecosystem stability. D) Adecrease in climatic changes. Show Answer Correct Answer: A) Anincrease in skin cancer among humans. 17. Water, soil, minerals, nitrogen and energy are all essential ..... components of an ecosystem. A) Abiotic. B) Materials. C) Biotic. D) Environmental. Show Answer Correct Answer: A) Abiotic. 18. Two different species fighting for the same resources often enough will lead to what outcome? A) Interspecific mating. B) Intraspecific competition. C) Competitive exclusion. D) Predation. Show Answer Correct Answer: C) Competitive exclusion. 19. Which of the following biomes is the coldest, has a low animal population, and very little precipitation? A) Tundra. B) Desert. C) Rainforest. D) Grassland. Show Answer Correct Answer: A) Tundra. 20. Organisms that use dead organisms and the waste material of other organisms for food. A) Decoposer. B) Consumer. C) Producer. D) Independent consumer. Show Answer Correct Answer: A) Decoposer. ← 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