This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 97 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 97 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Groups of different species living in the same area at the same time A) Ecosystems. B) Biosphere. C) Communities. D) Populations. Show Answer Correct Answer: C) Communities. 2. What is carrying capacity A) A measure of how dense a population is. B) The amount of biomass a specific biome requires to become stable after a natural disaster. C) Any resource that can run out in an area. D) The maximum number of organisms that can be supported in a given habitat. Show Answer Correct Answer: D) The maximum number of organisms that can be supported in a given habitat. 3. Soil is ..... A) Biotic. B) Abiotic. Show Answer Correct Answer: B) Abiotic. 4. What is the amount of water in the seas? A) 96 percent. B) 99 percent. C) 75 percent. D) 97 percent. Show Answer Correct Answer: D) 97 percent. 5. The largest number of individuals of a particular species that an ecosystem can support over time. A) Population. B) Carrying capacity. C) Limiting factor. D) Habitat. Show Answer Correct Answer: B) Carrying capacity. 6. Deciduous means A) "to fall off". B) "to add". C) "to stay attached". D) "to be active". Show Answer Correct Answer: A) "to fall off". 7. Producers are also called ..... A) Otrophs. B) Consumers. Show Answer Correct Answer: A) Otrophs. 8. A relationship where one organism hunts and kills another organism is called ..... A) All of the above. B) None of the above. C) Consumer. D) Predator/prey. Show Answer Correct Answer: D) Predator/prey. 9. How did the river landscape change 1950-1990? A) Rivers had strong edges, low erosion, and high flow. B) Rivers had weak edges, high erosion, and low flow. Show Answer Correct Answer: B) Rivers had weak edges, high erosion, and low flow. 10. What are three ways water gets into the air? Evaporation, transpiration, and ..... ? A) Toilets. B) Breathing. C) Crying. D) Perspiration. Show Answer Correct Answer: B) Breathing. 11. Which of the following is not an example of a limiting factor? A) Food. B) Water. C) Shelter/ Temperature. D) Presence of fur. E) Predators. Show Answer Correct Answer: D) Presence of fur. 12. The physical environment in which a species lives and to which it is adapted is its A) Niche. B) Biome. C) Habitat. D) None of above. Show Answer Correct Answer: C) Habitat. 13. Which of these describes a mutually beneficial relationship between two organisms? A) A dog with worms in its intestine. B) A turtle and a snail that both eat grass live in a river. C) A honeybee pollinating a plant and receiving nectar for food. D) A small fish attached to a shark, eating tiny pieces of the shark's food as it floats. Show Answer Correct Answer: C) A honeybee pollinating a plant and receiving nectar for food. 14. Where will you see rats, snakes, lizards and many types of cactus? A) Desert. B) Grassland. C) Tundra. D) Tropical rainforest. Show Answer Correct Answer: A) Desert. 15. If there are more birds than there are worms to eat in an area, there will probably be a fight for food. This is an example of what kind of symbiotic relationship? A) Mutualism. B) Commensalism. C) Competition. D) Parasitism. Show Answer Correct Answer: C) Competition. 16. A pyramid of numbers is used to show A) The distribution of biomass in an ecosystem. B) A network of feeding relationships. C) The distribution of organisms in an ecosystem. D) A chain of feeding relationships. Show Answer Correct Answer: C) The distribution of organisms in an ecosystem. 17. Type of consumer that breaks down carbon compounds in dead organisms and organic waste and enriches soil. A) Carnivore. B) Herbivore. C) Omnivore. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 18. Secondary succession can begin with a forest fire. What is left behind after the fire? A) Nothing. B) Bare rock. C) A thriving ecosystem. D) Soil. Show Answer Correct Answer: D) Soil. 19. The single most important limiting factor in any terrestrial biome is ..... A) Soil type. B) Average monthly temperature. C) Water availability. D) None. Show Answer Correct Answer: C) Water availability. 20. Sometimes, variation can be caused due to both inherited and environmental factors. Which of these is an example of inherited variation only? A) Eye colour. B) Height. C) Weight. D) Skin colour. Show Answer Correct Answer: A) Eye colour. ← 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