This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 82 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 82 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the gradual introduction of harmful chemicals in the food chain? A) Life enhancement. B) Chemical decomposition. C) Biology. D) Biological enhancement. Show Answer Correct Answer: D) Biological enhancement. 2. ..... is when one organism (a predator) eats another organism (the prey). A) Competition. B) Cooperation. C) Predation. D) Symbiosis. Show Answer Correct Answer: C) Predation. 3. Match:industrial ..... A) Layer. B) Waste. C) Footprint. D) Shortage. Show Answer Correct Answer: B) Waste. 4. All the interacting organisms living in an area A) Ecosystem. B) Community. C) Population. D) Habitat. Show Answer Correct Answer: B) Community. 5. Which of the following is considered to be the most important element in living organisms? A) Carbon. B) Hydrogen. C) Oxygen. D) Phosphorus. Show Answer Correct Answer: A) Carbon. 6. This type of organism feeds on dead organic material. A) Carnivore. B) Omnivore. C) Deritivore. D) Decoposer. Show Answer Correct Answer: C) Deritivore. 7. Physical features of an organism like the bill on a bird or the fur on a bear. A) Structural adaptations. B) Behavioral adaptations. C) Good abs. D) Natural selection. Show Answer Correct Answer: A) Structural adaptations. 8. Elephants move OUT of an area A) Immigration. B) Emigration. C) Limiting factor. D) Carrying capacity. Show Answer Correct Answer: B) Emigration. 9. If paleontologists find fossils of many different species existing in the same area at approximately the same time, the paleontologists can conclude that the ecosystem in this area had a high degree of- A) Biological diversity. B) Geographic isolation. C) Episodic speciation. D) Climatic variation. Show Answer Correct Answer: A) Biological diversity. 10. What is the name for the top animal of the food chain A) Apex predator. B) Primary consumer. C) Decoposer. D) Producer. Show Answer Correct Answer: A) Apex predator. 11. What type of species interaction is the following:two bears fighting over the same mate. A) Predation. B) Mutualism. C) Competition. D) Parasitism. Show Answer Correct Answer: C) Competition. 12. A large geographical area that is characterized by its climate, flora (plants), and fauna (animals). A) Biome. B) Ecosystem. C) Habitat. D) Community. Show Answer Correct Answer: A) Biome. 13. What is renewable energy not? A) Wind energy. B) Biomass energy. C) Carbon energy. D) None of above. Show Answer Correct Answer: C) Carbon energy. 14. A scientist was studying a population of fish in a pond over a period of 10 years. He observed thatthe population increased each year for 3 years, and then remained nearly constant for the rest ofthe study. The best explanation for this observation is that the population had A) Stopped reproducing. B) Reached carrying capacity. C) Mutated into a different species. D) Run out of food and all died. Show Answer Correct Answer: B) Reached carrying capacity. 15. Which gas makes up 78% of our atmosphere? A) Oxygen. B) Ill. C) Nitrogen. D) Water vapor. Show Answer Correct Answer: C) Nitrogen. 16. Which biome is hot all year with wet and dry seasons? A) Tropical rainforest. B) Arctic tundra. C) Temperate grassland. D) Desert. Show Answer Correct Answer: D) Desert. 17. What type of relationship is it referring to when talking about mutualism, commensalism, and parasitism? A) CoevolutionRelationships. B) Symbiosis Relationships. C) Cooperation. D) I have no clue. Show Answer Correct Answer: B) Symbiosis Relationships. 18. What is the PROCESS called where PRODUCERS make food using energy? A) Carbon Cycle. B) Cellular Respiration. C) Photosynthesis. D) Nitrogen Fixation. Show Answer Correct Answer: C) Photosynthesis. 19. A pyramid shape is used to show the amount of available energy at each trophic level because ..... A) Energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up. B) Energy increases up the food chain just like the pyramid shape gets smaller as you go up. C) Energy amounts are the same at each trophic level. D) None of above. Show Answer Correct Answer: A) Energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up. 20. Living things in an ecosystem A) Community. B) Biotic. C) Abiotic. D) Comsurmer. Show Answer Correct Answer: B) Biotic. ← 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