This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 217 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 217 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... are trees that have cones and needle-like leaves. A) Canopy. B) Conifers. C) Deciduous. D) Ferns. Show Answer Correct Answer: B) Conifers. 2. Lions, tigers, and bears ..... A) Producers. B) Herbivores. C) Carnivores. D) Decomposers. Show Answer Correct Answer: C) Carnivores. 3. Scavengers eat: A) Plants. B) Animals. C) Both plants and animals. D) Dead organisms. Show Answer Correct Answer: D) Dead organisms. 4. The most abundant species within a community? A) Support Species. B) Keystone Species. C) Endangered Species. D) Dominant Species. Show Answer Correct Answer: D) Dominant Species. 5. A decomposer is: A) An organism that breaks down and obtains energy from dead organic matter. B) An organism that gets energy from dead plants. C) An organism that gets energy from dead musicians. D) An organism that gets energy from rotten eggs. Show Answer Correct Answer: A) An organism that breaks down and obtains energy from dead organic matter. 6. An organism that only eats meat A) Herbivore. B) Omnivore. C) Scavenger. D) Carnivore. Show Answer Correct Answer: D) Carnivore. 7. The relationship between a bee and a flower would be an example of A) Symbiosis. B) Mutualism. C) Commensalism. D) Parasitism. Show Answer Correct Answer: B) Mutualism. 8. A volcano under the ocean erupts and forms a small island. Over time, the measure of which factor would best indicate the progression of ecological succession on an island? A) Depth and composition of the soil. B) Average air temperature. C) Yearly rainfall accumulation. D) Island location. Show Answer Correct Answer: A) Depth and composition of the soil. 9. The number of individuals / unit of space A) Population density. B) Dispersion. C) Size. D) Growth rate. Show Answer Correct Answer: A) Population density. 10. Cause decay by breaking down complex molecules into simpler molecules A) Chemosynthesis. B) Biomass. C) Consumer. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 11. Which living thing is not classified as a producer? A) Squirrel tail seaweed. B) Earthworm. C) Marijuana. D) Grass. Show Answer Correct Answer: B) Earthworm. 12. ..... states that two species cannot exist together if they compete for the same resources. One will either die out or migrate, or they will adapt to separate resources. A) Hardy-Weinberg Principle. B) Limiting Nutrient Principle. C) Competitive Exclusion Principle. D) Tolerance Principle. Show Answer Correct Answer: C) Competitive Exclusion Principle. 13. What happens to population size when a population reaches the carrying capacity of its environment? A) Population size increases [(births + immigration) > (deaths + emigration)]. B) Population size decreases [(births + immigration) < (deaths + emigration)]. C) Population size is stable [(births + immigration) = (deaths + emigration). D) Population size is not affected . Show Answer Correct Answer: C) Population size is stable [(births + immigration) = (deaths + emigration). 14. Which of these is the foundation of the Food Web and Energy Pyramid? A) Photosynthesis. B) Plants. C) Decomposers. D) Omnivores. Show Answer Correct Answer: A) Photosynthesis. 15. Which of these words does NOT describe an invasive species? A) Alien. B) Intruder. C) Non-native. D) Natural. Show Answer Correct Answer: D) Natural. 16. What term states that movement of an organisms into an area from another population? A) Migration. B) Immigration. C) Emigration. D) Relocating. Show Answer Correct Answer: B) Immigration. 17. A ..... makes its own energy and begins the food chain. A) Consumer. B) Producer. C) Herbivore. D) Decoposer. Show Answer Correct Answer: B) Producer. 18. Humans will cause more than half of the existing species in the world to go extinct in the next 100 years A) True. B) False. Show Answer Correct Answer: A) True. 19. Indicate the biotic and abiotic factors that affect the distribution of organisms in an environment. Herbivory A) Biotic. B) Abiotic. Show Answer Correct Answer: A) Biotic. 20. The role a species plays in a community is known as what? A) Job. B) Habitat. C) Niche. D) Competition. Show Answer Correct Answer: C) Niche. ← PreviousNext →Related QuizzesScience QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books