This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 238 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 238 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What aquatic biome is characterized by flowing fresh water? A) Lakes/Ponds. B) Mangroves Swamps. C) Rivers/Streams. D) Coral Reefs. Show Answer Correct Answer: C) Rivers/Streams. 2. The variation in the lengths of some fish is called A) Discontinuous. B) Continuous. C) Both discontinuous and discontinuous. D) Neither discontinuous nor continuous. Show Answer Correct Answer: B) Continuous. 3. Why shouldn't you shout at the forest? A) Because you can scare animals. B) Because you can chore your throat. C) Because you can have a headache. D) Because trees will fall. Show Answer Correct Answer: A) Because you can scare animals. 4. How many percent does light taken in by plants for photosynthesis? A) 1%. B) 2 %. C) 10%. D) 5%. Show Answer Correct Answer: A) 1%. 5. Living organisms and product of organisms A) Biotic. B) Niche. C) Abiotic. D) Exotic. Show Answer Correct Answer: A) Biotic. 6. Carbon Dioxide=CO2 A) 1 Carbon, 2 Oxygen. B) 1 Chlorine, 2 Oxygen. C) 1 Chlorophyll, 2 Oxygen. D) None of above. Show Answer Correct Answer: A) 1 Carbon, 2 Oxygen. 7. Biotic factors in the environment are A) Metal. B) Mines. C) Non-living. D) Living or once living. Show Answer Correct Answer: D) Living or once living. 8. Temperature refers to the conditions of the atmosphere from day to day. A) True. B) False. Show Answer Correct Answer: B) False. 9. All living things together in one area is called a ..... A) Community. B) Population. C) Ecosystem. D) None of above. Show Answer Correct Answer: A) Community. 10. The symbiotic relationship in which one species benefits, while the other is unaffected is known as: A) Symbiosis. B) Parasitism. C) Mutualism. D) Commensalism. Show Answer Correct Answer: D) Commensalism. 11. What is the secondary consumer? Plant $\rightarrow$ snail $\rightarrow$ frog $\rightarrow$ snake $\rightarrow$ owl A) Snail. B) Frog. C) Snake. D) Owl. Show Answer Correct Answer: B) Frog. 12. True or False. In this Food Web Pyramid the consumers on each level only get about 10 percent of energy that the plants have stored. A) True. B) False. Show Answer Correct Answer: A) True. 13. Primary succession refers to ..... A) Establishing an environment after a catastrophic event. B) Establishing an environment for the first time. C) An organism gaining dominance over another for the first time. D) A pioneer species establishing an ecosystem after a forest fire. Show Answer Correct Answer: B) Establishing an environment for the first time. 14. What is the study of the interactions among organisms and between organisms and their environments called? A) Biology. B) Ecology. C) Astronomy. D) Biosphere. Show Answer Correct Answer: B) Ecology. 15. What do plants use to take in carbon dioxide? A) Chloroplasts. B) Small openings in their leaves called stomata. C) Their roots. D) Their stem. Show Answer Correct Answer: B) Small openings in their leaves called stomata. 16. What is the characteristic shape of a curve illustrating logistic growth? A) J-shaped. B) U-shaped. C) S-shaped. D) L-shaped. Show Answer Correct Answer: C) S-shaped. 17. What would most likely happen to the population of the water flea if the algae it ate decreased? A) It would not change. B) It would decrease. C) It would increase. D) It would first increase then decrease. Show Answer Correct Answer: B) It would decrease. 18. Kudzu vines grow by climbing and wrapping around trees. Trees covered by kudzu can die because they are starved of sunlight. What type of relationship exists between the trees and the kudzu growing on them? A) Competition. B) Mutualism. C) Parasitism. D) Predator-prey. Show Answer Correct Answer: A) Competition. 19. Knowing the type of food consumed by an organism helps to identify the role of the organism in the community. This role is known as its A) Nesting site. B) Territorial range. C) Biomass. D) Niche. Show Answer Correct Answer: D) Niche. 20. Which would have barnacles, seaweed, and starfish? A) Coastal ocean. B) Intertidal ocean. C) Open ocean. D) None of above. Show Answer Correct Answer: B) Intertidal ocean. ← 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