This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 40 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A population of baboons has access to plenty of food, shelter, and space to live but has an inadequate supply of water. Which of these BEST defines the water in this case? A) Limiting factor. B) Limiting reagent. C) Darwinian shortfall. D) Biochemical constrain. Show Answer Correct Answer: A) Limiting factor. 2. Anything that limits an organism's ability to live in a particular environment. A) Pioneer species. B) Limiting factor. C) Climax community. D) None of above. Show Answer Correct Answer: B) Limiting factor. 3. Which of the following is NOT a source of nitrates and phosphates into a river? A) Fertilizers. B) Animal waste. C) Wastewater. D) Burning fossil fuels. Show Answer Correct Answer: D) Burning fossil fuels. 4. Identify the organic compound A) HCl. B) CaCl. C) NaCl. D) Satha 12 watts. Show Answer Correct Answer: D) Satha 12 watts. 5. Sun is the primary source of energy in the environment. A) True. B) False. Show Answer Correct Answer: A) True. 6. Prokaryotes do not have a nucleus. A) True. B) False. Show Answer Correct Answer: A) True. 7. Which of the following shows an abiotic factor interacting with a biotic factor in the environment? A) Lamprey eels survive by attaching themselves to trout. B) Water temperature affects its oxygen level. C) Low light intensity affects the growth of forest pine trees. D) Gypsy moth caterpillars eat the leaves of apple tree. Show Answer Correct Answer: C) Low light intensity affects the growth of forest pine trees. 8. Two species of monkeys eat fruit from same tree A) Predation. B) Competition. C) Mutualism. D) Parasitism. Show Answer Correct Answer: B) Competition. 9. This Biome has extremely hot and extremely cold temperatures. A) Rivers and Streams. B) Desert. C) Rainforest. D) Polar Regions. Show Answer Correct Answer: B) Desert. 10. Which of the following is an example of a biotic component of the environment? A) Wind. B) Vegetation. C) Water. D) Temperature. Show Answer Correct Answer: B) Vegetation. 11. What is a food web? A) A web made by spiders to get food. B) A series of overlapping food chains. C) One food chain. D) None of above. Show Answer Correct Answer: B) A series of overlapping food chains. 12. All living organisms in an area and all the nonliving features of their environment is called the A) Biome. B) Ecosystem. C) Niche. D) Community. Show Answer Correct Answer: B) Ecosystem. 13. Which biome has the least amount of rainfall? A) Tropical rainforest. B) Taiga. C) Tundra. D) Temperate Rainforest. Show Answer Correct Answer: C) Tundra. 14. Which organelle performs PHOTOSYNTHESIS? A) Chloroplast. B) Mitochondria. Show Answer Correct Answer: A) Chloroplast. 15. All the energy in a food web/chain originate from what? A) Burning Coal. B) Nuclear Energy. C) The Sun. D) Wind Turbines. Show Answer Correct Answer: C) The Sun. 16. Fossil fuels are considered nonrenewable resources because they ..... A) Burn so quickly. B) Are in such high demand. C) Take hundreds of millions of years to form. D) Pollute the air. Show Answer Correct Answer: C) Take hundreds of millions of years to form. 17. Drought, erosion, flood, and prolonged heat spells are examples of- A) Communities. B) Biotic factors within an ecosystem which affect abiotic components. C) Populations. D) Abiotic changes within an ecosystem which can affect biotic factors. Show Answer Correct Answer: D) Abiotic changes within an ecosystem which can affect biotic factors. 18. All of the organisms that inhabit the savanna make up a(n) A) Ecosystem. B) Biome. C) Species. D) Population. Show Answer Correct Answer: B) Biome. 19. Omnivorous A) Feed on plants and bactaria. B) Feed on animals and fungi. C) Feed on plants and animals. D) Feed on mammals. Show Answer Correct Answer: C) Feed on plants and animals. 20. Which organism break large molecules into smaller ones and return them to the abiotic environment? A) Heterotrophs. B) Tertiary comsumers. C) Decomposers. D) Producers. Show Answer Correct Answer: C) Decomposers. ← 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